A Book of Bridges

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Vm 3 1924 020 735 019 .i"-" Cornell University Library ^^

The original of this book is in the Cornell University Library.

There are no known copyright restrictions in

the United States on the use of the text.

http://www.archive.org/details/cu31924020735019 A BOOK OF BRIDGES

A BOOK OF BRIDGES BY FRANK BRANGWYN, A.R.A. AND WALTER SHAW SPARROW

LONDON : JOHN LANE THE BODLEY HEAD

*'^ NEW YORK : JOHN LANE COMPANY MCMXV MO- f] "lU^^l

WILLIAM BRENDON AND SON, LTD., PRINTERS, PLYMOUTH, ENGLAND HISTORIC VITRY-LE-FRANCOIS, ON THE MARNK

PREFATORY NOTE

LITERARY projects may be put in two classes. Some are like steamers that go in a regulated course J direct to their destinations, while others tack here and there like sailing ships, governed by a zigzag progress.

The subject of bridges belongs to this latter class.

For five-and-twenty years I have tried to order it into a methodised hobby. As well try to teach a hive of honey-bees never to visit certain flowers in a garden, and :

vi PREFATORY NOTE never to fly beyond certain pathways and hedges. Yet a writer cannot help rebelling when his chosen theme declines to play in the game of authorship, and deviates from many careful plans which are made for its benefit. Every chapter in this book has been rewritten eight or ten times, yet my sailing ship has not become an Atlantic liner. My wish for a long time was to show the evolution of bridges in about seven hundred photographic illustra-

tions, with eight lines of text under each print ; and in preparation for this work I collected materials, and received invaluable help from other pontists, particularly from Mr. Frank Brangwyn, Mr. H. T. Crofton, Mr. C. S. Sar- gisson, Mr. Edgar Wigram, the Rev. O. M. Jackson, and the Church Missionary Society. Pontist after pontist sent

me notes, photographs, sketches ; and then Frank Brangwyn suggested that we should work in collaboration. Here was luck indeed ! His pictures and drawings would be the book of art ; and the rambling subject, if it passed over mere technique into the human drama, ought to interest the general reader who does generally read. For bridges have represented types of society, every change in their development having been brought about by changes in social needs.

One thing more than any other is attractive to a pontist it is the varied strife that bridges and roads have circulated, not only in military campaigns, but in the thronged struggle for existence—the one incessant war in the affairs PREFATORY NOTE vii of men. A routine of idle sentiment prattles about an illusion named Peace, yet strife everywhere remains the historian of life, every effort to do and to live claiming a battle-toll of killed and wounded and maimed. Even sleep, the nearest kinswoman of peace, is united to the law of battle by dreams that torture. A pontist, then, when studying the strife that roads and bridges have distributed, must clear from his mind the fanciful ideas that pacifism has invented ; he is an adventurer in history, not an idler in a world of visions. To-day, above all, he is called upon to see the truth, because Europe, driven by the rival motive-powers of hostile ideals, has passed from industrial strikes and contests into other phases of necessary warfare. Once more differing civilizations will have their worth tested to the full on stricken fields ; and once more roads and bridges will dominate the military tactics and strategy. This great War broke out when my last chapter was nearly finished, and its early events illustrate and confirm

the main arguments which I have tried to make as clear as possible, so that no person may think of bridges apart from their historic service to mankind. During many centuries,

for example, all strategical bridges were fortified ; then a

gradual decline began, and it culminated in the defenceless modern bridge that sappers blow up in a few minutes. Bridge-builders everywhere have much good sense to regain from the science of national defence, a very difficult

science to-day, for many of its methods are being rendered viii PREFATORY NOTE obsolete by airships and aeroplanes. So a book on historic bridges could not be published at a time more opportune than the present moment.

Several collectors have lent pictures, and their kind aid is acknowledged in the table of illustrations.

W. S. S.

November wth, 19 14. CONTENTS

CHAPTER THE FIRST ON THE STUDY OF BRIDGES AND ROADS

Section I. General Views, from p. 3 to p. 13. Section II. Strife and Historic Bridges, from p. 14 to p. 52. Section III. Custom and Conven- tion, from p. S3 to p. 84. Section IV. Controversies, from p. 85 to p. 106.

CHAPTER THE SECOND

' MAN AS THE MIMIC OF NATURE ...... 107

Section I. Preliminary Considerations, from p. 109 top. 112. Section II.

Among the Heralds of Man, from p. 113 to p. 124. Section III. The Slab-Bridge with Stone Piers, from p. 125 to p. 128. Section IV. Tree- Bridges WITH Stone Piers, from p. 129 to p. 132. Section V. Tree- Bridges WITH Timber Piles, from p. 133 to p. 135. Section VI. Some Typical Timber Bridges, from p. 136 to p. 143. Section VII. Primitive Suspension Bridges, from p. 144 to p. 149. Section VIII. Natural Arches—THEIR Significance and their Influence, from p. 150 to p. 164.

CHAPTER THE THIRD

A FEW WORDS ON THE ROMAN GENIUS 165

CHAPTER THE FOURTH

OLD BRIDGES, EUROPEAN, PERSIAN AND CHINESE . . . .205

CHAPTER THE FIFTH

ON THE EVOLUTION OF UNFORTIFIED BRIDGES . . . .329 ix X CONTENTS

APPENDIX I fAGm CHINESE GABLED BRIDGES 3^5

APPENDIX II STEEP ROMAN BRIDGES ... 3^7

INDEX AND GLOSSARY 369 LIST OF COLOUR PLATES

Frontispiece. PONT St. Benezet over the Rh6ne at Avignon. Built between the years ii 77 and 1185. National Gallery of Australia. TO FACE PACK Railway Bridge at Albi in France 8

Pont VALENTRfe at Cahors in France : the Fortified Gates AND Towers. Thirteenth Century. See also the second picture of this Bastille Bridge .16 The Alcantara at Toledo. Mainly the work of Archbishop Tenorio, A.D. 1380; fortified by Andres Manrique, A.D. 1484.

Collection of Miss E. C. Rossignol . . . . . • 32 War-Bridge of the Middle Ages at Parthenay in France 36 Cannon Street Railway Bridge, London. Collection of the Fine Art Society ...... 48 Old London Bridge. Begun by Peter Colechurch in 11 76, and

finished by a Frenchman, called Isembert, in the year 1209 . . 52 Old Bridge over the Clain near Poitiers .... 56 At Albi on the Tarn in France. Showing on our right the Old Houses, and beyond the Bridge, on our left, the great Old Church, famous for its fortifications ...... 72 Tower Bridge, London. Collection ofJohn Lane, Esq. ... 80 Famous Bridge at Espalion in France. Said to date from the Eighth Century 88 Pont du Tarn at Albi in France. Said to date from about the years 1035-40 92 Pont de Vernay at Airvault, Deux-S^vres. Famous bridge with ribbed arches, French Romanesque Period, Twelfth Century 96 Old Bridge over the Aude at Carcassonne in France.

Twelfth Century ...... 104

Gothic Bridge at Villeneuve-sur-Lot, France . . .120 Ponte DELLA Paglia at Venice. Renaissance. Collection oj R. Workman, Esq. 152 Roman Aqueduct at Segovia in Spain 184 xi xii LIST OF COLOUR PLATES TO FACE PAGE Huge Defensive Bridge at Cordova in Spain. Originally Roman, but remodelled by the Moors in the Ninth Century.

Recently so much repaired that it looks almost new . . .188 Old Bridge with Houses at Kreuznach on the Nahe, Prussia 208 The Rialto in Venice. Designed in 1588 by Antonio da Ponte.

Collection of the Fine Art Society ...... 212 New London Bridge. Designed by George Rennie, and carried out by his brother, Sir John Rennie. Opened to the public in

1 83 1. Collection of' Charles Holme, Esq...... 220 Three-Arched Bridge at Venice, over the Canal of St. Giobbe. Brick and stone. Renaissance. Collection of f. Heaton, Esq...... 224 Gothic Bridge at Barnard Castle, Yorkshire . . . 232

Gothic Bridge with Shrines at Elche in Spain . . . 236

Old Bridge at Espaly, near Le Puy, in France . . . 240 Pont des Consuls over the Tarn at Montauban in France. Fourteenth Century ...... 256 Pont Valentre at Cahors-SUR-Lot. Thirteenth Century. See also the other picture of this Bastille Bridge .... 264 The Alcantara at Toledo. Showing the Moorish Gateway at

the Town end of the Bridge. See also the other picture . . 284 Spanish War-Bridge—the Bridge of St. Martin at Toledo. Its history seems to date from 121 2, but in the fourteenth century it was rebuilt by Archbishop Tenorio 288

Ponte Nomentano over the Anio ; a Medieval War-Bridge IN THE CaMPAGNA 296 Laroque on THE RiVER LOT, NEAR Cahors. A sort of inland

Gibraltar ; a part of the village is built on bridges thrown across chasms in the rocks ...... 300 PONT Neuf AT Paris. Built in 1604, but much altered since the Renaissance ...... 320 The Tower Bridge, London. Albertina Collection, Vienna. See also the other drawing ...... 328 Pont Henri IV over the Vienne at ChAtellerault in France. Built by Charles Androuet du Cerceau, 1564-1609 . . . 332 Pont de Tours, France. Famous Bridge of the Eighteenth Century 344 On the Tarn at Millau in Southern France. Representing the broken end of an old bridge with a mill built on it ; behind is an arch of the new bridge 352 LIST OF BLACK AND WHITE ILLUSTRATIONS

PAGE

Historic Vitry-le-Francois, on the Marne . . . . v

Bridge of Boats at Cologne i

Broken War-Bridge of the XIII Century, at Narni in Italy 14

War-Bridge of the XIV Century at Orthez in France . 18 Ruins of the great Roman Bridge over the Nera at Narni, Italy 24 Puente de San Juan de las Abadesas at Gerona in Spain 29 The Old War-Bridge of Stirling 45

Pont Sidi Rached at Constantine in Algeria: 1908-1912 . 53 In the Valley of Wycollar, Lancashire: the Weavers' Bridge 63 Pont du Diable, St. Gothard Pass 6y

Old Town Bridge in Perugia, Italy 85 At Zutphen in Holland 107

In KASHMfR : Primitive Bridge with Triangular Arches . 161

Bridge at Waltham Abbey attributed to Harold . . 163

Smyrna : Roman Bridge and Aqueduct 165

The Pont du Gard from above the First Tier , . .172 Ruins of a Roman Bridge over the Loire at Brives- Charensac 180 The Bridge at Zaragoza, partly Roman 187

Ponte Rotto at Rome, anciently - the Pons Palatinus or Senatorius 192 Ponte Maggiore over a Ravine of the Tronto at Ascoli-

Piceno in Italy : built in the Middle Ages, but Roman IN Style 200

xiii xiv BLACK AND WHITE ILLUSTRATIONS

PAGE The Pul-i-Kaisar at Shushter in Persia .... 203 Durham 205 The Pul-i-Khaju over the Zendeh Rud at Isfahan in Persia 213 Staircase Bridge in China 248 Bridge over the Main at Wurzburg in Bavaria (1474-1607) 259 Bridge of Ali Verdi Khan over the Zendeh Rud at Isfahan 269 Primitive Timber Bridge in Bhutan, India .... 273 Defensive Bridge at Sospel 276 Broken War-Bridge at Narni in Italy 277

War-Bridge over the Gav-de-Pau at Orthez in France . 279 War-Bridge at Monmouth 281

The Rabot at Ghent : a Fortified Lock .... 289

Todentanzbrucke at Lucerne in Switzerland . . . 292 Pont Saint-Esprit 293 Canal Bridge in Venice 329

Rain . 363 A BOOK OF BRIDGES

BRIDGE OF BOATS AT COLOGNE

CHAPTER THE FIRST ON THE STUDY OF BRIDGES AND ROADS

GENERAL VIEWS

yA PONTIST, or devotee of bridges, ought to be

is /_% envied and pitied ; his work marvellously attrac- X ^tive, but he cannot hope to learn even a twentieth part of the discoverable history which has circulated along highways. Indeed, the history goes back to a time that preceded the descent of man ; a primal time when every bridge was made by Nature, and when footpaths and tracks were the runs and spoor of wild animals, many of which were huge enough to plough their way through deep jungles and to trample wide paths through the undergrowth of virgin forests. There were eight or nine sorts of natural

bridge (p. 1 13), and they were all useful to the many quadrupeds that travelled far in their search for prey and forage.

To meditate on this fact is to visualise many probable

happenings ; vivid pictures live before the mind's eye, and

in one I see how a full-grown Iguanodon, after gorging all day in a ravaged weald, was overcome by the sleep of glutted hunger as he tried to cross a big fallen tree that

bridged a chasm near by his lair under a rock-shelter ; and a flock of little bright birds came and settled on the seventy

feet of body and tail, just to pick up vermin. Why not ?

Life everywhere has fed on lives ; something has died, and 3 4 A BOOK OF BRIDGES suffered a resurrection of vitality, whenever appeased hunger has renewed the health of an organism ; and this picture of an edacious Iguanodon and his bird friends attracts me for two reasons: it reminds me that bridges throughout their history have circulated strife, and it represents the perpetual law of battle that rules creatively over all living creatures, like foul manure over gardens and harvest fields. A pontist, then, must try to see clearly, under a form of visual conception, what part his subject played in the earliest war of organic life, when natural bridges aided the first animals not only to hunt over great territories, but to migrate from their first homes into lands very far away. In the second chapter we shall try to feel the inspiring pressure of events which must have acted during the descent of man on a brain remarkable for its imitative faculties. Perhaps we can get into imaginative touch with

our earliest ancestors ; perhaps we can find in ourselves a vestige of their aboriginal nature ; and then we shall know, by a sympathy which we shall not question, how each natural bridge helped them in their wanderings, and became a model to be copied, and adapted, and improved. Such is the beginning of our enviable studies, but their end is never reached. Not even the long days and years of Hilpa and Shalum, in Addison, where antediluvian seconds endure about as long as our trivial minutes, would be enough for a complete study of bridges and roads, viewed as inestimable servants to the commonweal of man- THE STUDY OF BRIDGES AND ROADS 5 kind. A complete study would follow their evolution

through eight world-wide subjects : architecture, civil engineering, antiquarian research, the development of trade and commerce from primitive barter, social wayfaring, war

and its red tragedies, the longevity of barbaric customs, usages, traditions, and the ups and downs of fortune in the slow fever called progress, whose clinical thermometer has been tribal and national enterprise, and whose gradual effects on the temperature of bodies civil have produced many withering crises fatal to civilizations. These eight subjects are vastly intricate as well as world-

wide. In scope they are infinite, if we compare their magnitude with the brief seasons of our perishable days.

Let us then ask ourselves a question : How much may we expect to learn about bridges and roads, the distributive

agents of all human aims and ambitions ? Suppose we live to be threescore years and ten, and suppose we work gladly for eight hours a day from the age of fifteen to that

of seventy ; encouraged by perfect health, and so delighted with our work that we rescue Sunday from a Sabbatarian

inertia, and lose no time at all by being drudges to the

holiday mania. For a pontist never need be idle ; not only

has he a thousand problems to reconsider, but in all his walks and rides he is a wayfarer with his hobby. When he feels cocksure he can visit a detestable railway bridge and drink

the wormwood of pessimism ; and when for a whole week

he has tried in vain to follow a devious fact through all its golf-ball antics from bunker to bunker, let him go to a 8 A BOOK OF BRIDGES choose one of these problems for attack, one which is likely to repay his labour, is often beyond the scope of a junior candidate." * Not that a young man should be very humble in his choice of a problem, for it is with students as with empire makers, who would do very little if a bold indiscretion were unfruitful. Let us have faith in the sunburnt cockiness of extreme youth. When it hunts the far horizon as if mirages of self-deception were the butterflies of ambition, easy to catch and easy to preserve, it is guided by the genius of research ; and certainly it has done far more for the world than will ever be done by a reasoning caution that looks too far ahead.

About five-and-twenty years ago, when I began in my leisure time to be a pontist, a good old slippered antiquary gave me some hints on what he called " a discreet fervour

in the study of bridges." I was to choose an English county, perhaps Derbyshire, and for eight or nine years I was to live all day long with the bridges, getting them photographed from many points of view, and recovering bits of their stories from dusty old records and forgotten muniment chests. Then a clay-cold book in two volumes was to be written, with a frigid zeal for the accuracy of minute data, and with enough glacial footnotes on every page to strike terror into that general reader who does generally read. No thought at all was to be given to the

* "Notes on the Composition of Scientific Papers," T. Clifford AUbutt, London, 1904, p, 3. w u z <

Ix.

o Q 2

—

THE STUDY OF BRIDGES AND ROADS 9 public, whose vulgar mind had neglected the many antiquaries who had told the historic truth unflinchingly, with a desperate effort to be impartial, unemotional, and yet effective also, like icebergs. I told my adviser that his ideals were those of a studious millionaire. He could afford to write without heart and to be pleased with a bad circulation ; could afford also to forget that old English bridges, though at times as charmingly rustic as the Robin

Hood Ballads, were not great masterpieces of art, like a good many old bridges on the Continent. If I invited readers to dine with me on Brazil nuts, unaided by nut- crackers, how in the world could I expect to receive company? But argument was useless. The antiquary had two homes—himself and the past, and in both he lived as a rapt dreamer. I see him still, a lean and dusty figure, unkempt, unwashed, for he "hated immersion" like Dr. Johnson. His favourite aim—and he never realised it was to put a spade tenderly against a human skull buried

in Pliocene deposits. " I would sooner do that," he declared one evening, "than be married to all the prettiest women in England—girls, not widows, of course." Courage was not his forte—except in one pugnacious habit which he shared with most antiquaries : not only did he love facts with a zeal that was always ready to defend them, but he regarded every fact as a big truth. The old man would say to me, for instance, " Hunt in the Middle Ages for common but shining truths about roads and bridges. Ah yes! There's the fact that many lo A BOOK OF BRIDGES

bridges were property owners ; their landed estates were sometimes inconsiderable, to be sure, like the noble parks

of Lilliput ; but each estate, whether large or small, was a great truth in the history of bridges. And I like to remember the good folk who in their wills bequeathed money to their favourite bridges, like Count Neville, who in 1440 left twenty pounds to ' Ulshawe Bridge,' near Middleham. Now and then the testator was a skinflint, like John Danby, who in 1444 left in his will a beggarly six and eightpence to 'Warleby Bridge.' Yes, and he was rash enough to die unrepentant. Another man, a notable merchant in his day, Roger Thornton, of Newcastle, was clever enough to save himself from oblivion, a merchant's destiny, by leaving a hundred marks to the Tyne Bridge in his native town—a bridge, by the way, that needed much renovation. But Thornton in his charity struck a hard bargain : the hundred marks would not be paid unless the

' mair and ye comyns ' released the testator from certain actions at law! Thornton died in 1429 ; and to show you that the beautiful truth which I am illustrating was not then historically juvenile, I will mention an earlier fact from the life of a Newcastle citizen, John Cooke by name, who in 1379 bequeathed twenty marks to the fortified bridge at Warkworth." The old man gossiped quaintly about his " truths," but when he wrote about them he was legal in profuse entangle- ments. Then it seemed to him that truth could not be protected by too many fortifications. Had he looked upon THE STUDY OF BRIDGES AND ROADS ii facts as facts, mere things which had happened and which had no future, his antiquarian knowledge would have been less arid. But he belonged to a school of pedants—the same school which either kills antiquarian magazines or enables them to live obscurely on unpaid contributions. That a man's lifework should be futile to the public, a mere cemetery where facts lie buried like fossils in a rock, is pitiful yet antiquaries are very proud of their barren labour. ; Scarcely one of them understands that a fact, however entertaining, has no value to thought unless it is a useful item in a mass of corroborative evidence ; and even then it can be nothing more than a fact, a thing to illustrate the perpetual action of an absolute truth, or the increasing worth of a given hypothesis, or the general belief in a given theory. Two or three facts that confirm each other " justify a guess, a random shot," or a vague suspicion ; an important collection of such facts, if it continues to grow,

gives validity to a hypothesis ; and when from many sources as various as they are many new facts are added year after year to the collection, until at last the cumulative evidence holds the field with the best judges, then we know that the hypothesis has been developed into a theory, the highest form of mobile knowledge in the realms of Thought. But

a theory is not absolute truth, of course ; it is a harbour where Knowledge rests while Thought is on the high seas, a Columbus, searching for new worlds.

From a guess to a theory ; this, then, is the architecture of constructive growth that research and revision build 12 A BOOK OF BRIDGES

to think clearly and with facts ; and if we as pontists wish humanely, we must use facts as a means to a worthy end, as architects employ their materials. One by one facts are to us what a few slates and tiles are to a builder, but Thought collects them, and then with care and inspiration she builds with them as she builds with stones and bricks and timber. In her work, moreover, there is nothing little when she does little things admirably; but when her devotees go away from her and parade guesswork as theory and fact as truth, we should ask them whether brick-kilns are houses and stone quarries cathedrals. To-day, unhappily, most people exalt facts into truths, and very often the great word " theory " is a journalistic term for any supposition that is loose or wayward or foolish. Thus, " Mrs. Jones

has a mere theory that her husband is hard at work when he remains in town after office hours."

From the life of bridges we may draw a great many conjectures, suppositions, speculations, suggestions, fancies,

ideas ; and here and there we find some attractive hy- potheses, notably those that concern the introduction of pointed arches into French bridges, and of ribbed arches into English bridges. Are there any truths, any useful and necessary things that repeat and confirm themselves

age after age ? Yes. There are some technical truths that belong for all time to the mechanics of bridge building; the world can employ them for ever, and always with the same good results, if engineers and architects work

competently. There is also a great social truth in the life THE STUDY OF BRIDGES AND ROADS 13

of bridges and roads ; namely, that types of society are as old as their systems of circulation, just as women and men are as old as their arteries. So the condition of a body social can be judged accurately if we examine with care its landways and waterways. In Spain, for example, where the genius of modernity is inactive, and where fine bridges represent many dead social states, Roman, Moorish, Mediaeval, and Renaissance, the past reigns over the highways, sometimes as an inspiration, as in the great and vast bridge at Ronda, but usually as a mournful historian. Even in those parts of Spain where trade endeavours to be modern, workmen have time enough to be

honest craftsmen ; their metal bridges are not uncouth, and their stone bridges are charmed with hints taken from classic models. They do not " progress," for they keep far off from that spirit of trade which regards the lies of advertising as proofs of a pushful honour. From a modern standpoint, then, Spain does not live except as a dim reflexion of her long ago. A pontist has few theories to consider, only two, indeed, and these are sisters. Let me introduce you to them. A BROKEN WAR-BRIDGE OF THE XIII CENTURY, AT NARNI IN ITALY ; REPAIRED WITH WOOD

STRIFE AND HISTORIC BRIDGES THE first theory sets thought astir on the necessity of having landways and waterways which in all respects are fitted to distribute the many func- tional activities of military and civil life. It is not enough that a complex type of society should have many intricate systems of circulation for its multiform traffic. The weak- est points in each system ought to be regarded as danger 14 THE STUDY OF BRIDGES AND ROADS 15 zones in the strategy of national defence, so it is a duty to protect them from attack, and the protection should be as complete as the military arts can make it, age after age. Now the most vulnerable points in a system of landways are the long bridges by which roads and railways are conducted across wide chasms, and deep valleys, and perilous waterways. Yet in England, and in other countries also, neither roads nor railways are defended ; indeed, modern bridges are not only unfortified, but as sensitive to bombs as elephants are to large bullets. Why has the world forgotten that a powerful nation whose bridges were cut would be like a giant whose arteries were severed ? As the suffragettes burnt down Yarmouth pier, so a conspiracy of civil disorder, acting in accordance with a well-formed plan, could in a night, with a few sappers, cripple a vast railway, by blowing up the main strategic bridges. I am giving a chapter to this urgent subject, most engineers having evaded with equal zest the charm of beauty and the security of our food supplies. At a time when the nations overarm themselves for war, tradesmen and engineers have erected

ugly bridges for an imagined peace ; but now that the art

of flying threatens civilization from overhead and from all around, like a new Satan, the public attitude to highways cannot remain lethargic. Willingly or unwillingly, we must recall and renew those principles of defensive war with the help of which bridges were safeguarded by the Romans and also in the Middle Ages. Frank Brangwyn has painted many aged fortified bridges, making a most varied i6 A BOOK OF BRIDGES

selection ; and in each of these historic pictures he illustrates the attitude of old times to the theory of pontine defence. The apathy of the public has been unintelligent, but not unintelligible, because bridges and roads are so ordinary, so

very trite, that we who use them every day do not think of their supreme influence on the nation's health and safety. They belong to that realm of custom where truths fall asleep in truisms and facts in platitudes. To understand a thing that seems obvious, or "inevitable," is among the problems that genius alone can solve in a complete way. Dr. Johnson believed that men and women could marry ugliness without being in the least intrepid, because custom would soon teach them not to know the difference between good looks and bad. As custom dulls our minds even in family life, where affection is most watchful, we cannot be surprised that common roads and bridges are too evident to be seen intelligently.

Very few persons love a bridge until it is gone, or until it has been put out of action by Napoleon's "whiff of gunpowder." Then a victorious army may be brought to a standstill, like Wellington's, in Spain, when the retreating French blew up an arch of the colossal Roman bridge at Alcantara, so that for some long days the unfordable Tagus might protect their rearguard. It was no easy task to repair the bridge with a netting of ropes that carried planks ; and when the British army crossed the gap on this makeshift footway, Wellington knew that the Devil was not the only archfiend in human affairs. O

Pi o o

-w c H

< s > fa H o fa

THE STUDY OF BRIDGES AND ROADS 17

Yes, believe me, it is worth while to think of the highways and byways. Try to imagine, for instance, what it has cost in suffering and in death to make fit for use all the traffic arteries and veins that nourish and sustain life in the bodies civil of the world. How long would it take to explore the myriads of rambling footpaths? Could this work be done in two hundred years by a thousand Stanleys? How many lives have been lost in making roads through forests and fens and over mountains ? in the construction of railways? in the building of bridges? in the slow cutting of canals ? The Suez Canal was a long campaign of stricken fields in the war of trade enterprise;* and the Panama Canal has reaped lives as quickly as minor battles reap them. If we could see in a form of visual conception all the sacrifice of life that civilizations have offered to progress on the historic landways and waterways, how terri- fied we should be ! Even the hospitals and sick-beds of humanity have not had a more scaring pathos than that which has accompanied the more peaceable enterprises of mankind. This reflexion brings us to the second theory that has a home in the life of bridges and roads. Other homes it has also, a vast number of them, for this theory belongs to the law of battle, the universal law of strife. In so far as the

* The earliest canal in history is the one that Necho II began in 6io B.C., to connect the Arabian Gulf with the Mediterranean Sea ; and Herodotus relates that the work went on for a year and was then abandoned, after costing the lives of 120,000 men. Necho was uninspired by the spirit of industrialism which would have finished the work, while praising the beauty of peace, c i8 A BOOK OF BRIDGES

lower organisms are concerned, this law seems to be as to suppose that permanent as the sun ; we have no reason

its rule will ever be relaxed among birds, beasts, fishes,

insects, or among other forms of life, such as competitive

A WAR-BRIDGE OF THE XIV CENTURY AT ORTHEZ IN FRANCE

trees in a wood; but mankind is an eternal mystery, and none can say into what civilization of symphonic harmony the human race may be evolved by gradual improvements in the crowded struggle for existence. A hundred thousand years hence the competitions of human life may be like harmonious rivalries between notes in music, or like the —

THE STUDY OF BRIDGES AND ROADS 19 wondrous orchestration that unites into a symphony of benign health all the communities of cells in a sound body.

" All for Each, Each for All " is the social rule that Nature administers in her cellular civilizations ; and she punishes with disease and death the bodies that rebel against her rule by developing harmful egotisms. Yet mankind has stereotyped a very different social rule, " Each for All, yet Each for Himself"; and what right have we to believe that this egotism, so long inherited, and continuously active, can change its nature gradually, till at last it will be as phil- harmonic as the cellular commonwealths forming a strong human body? At present this appears to be very improbable, but impossible we dare not call it, since every type of society is free to improve its own lot. So the law of strife in human affairs appeals to us not as a truth destined to last till doomsday, like the strife of carnivorous hunger, but as a theory which human life has not yet contradicted, but which in course of time may be tempered into a social art a competitive harmony favourable to everybody. Yet even then, no doubt, inequalities of mind will be active in accordance with Nature's law of infinite variation. Meanwhile, however, we have to accept history as mankind has made it. Strife has reigned everywhere ; even the test of efficiency has been—not the survival of the finest natures, but—the survival of the least unfitted for a long battle against bad environments. Very often the delicate have the best characters and the most alert brains ; and in times pa^t the delicate died from hardships by myriads. ;

20 A BOOK OF BRIDGES

Consider also the innumerable wars ; slaughter and success have tried to go hand-in-hand together as boon companions. Every road through history is a changing procession of battles. armies ; every ancient bridge has a long story of Indeed, bridges and roads have circulated all the many phases of strife that men have employed in civil rivalries, in mercantile competitions, in generative migrations, in roadside adventures with footpads and cut-throats, in fateful invasions, and in those missionary conquests which have given to religions their rival empires. No one knows how many invasions were broken up by the forests and fens of England before the Romans came with their colonising methods, and linked their scattered camps together by means of paved highways, great roads destined to be used for many centuries, and by many raids and armies. The earliest prehistoric tribes came along a bridge of land by which England was united to France they found in their course some of the nature-made bridges

(p. 114), and the spoor and tracks of formidable animals, such as the mastodon and the mammoth. Much later invasions, also prehistoric, must have come over the sea in boats, for the bridge of land had the history of most the bridges, water swallowed it up ; but every boat may be regarded as a floating bridge which is moved from place to place, so that a pontist when he studies the sea-borne invasions keeps in touch with his favourite subject. On their arrival in England the later prehistoric colonists found that most of the nature-made bridges had been copied, and that ;

THE STUDY OF BRIDGES AND ROADS 21 a great many footpaths and tracks rambled from settlements to watering-places and through the forests where huntsmen risked their lives in a sport of habit. The men of the Bronze Period were supplanted in Europe by a race more powerful, whose clenched fists needed larger sword-handles ; it was a race of manly and swaggering nomads, strong and fierce ; and yet, as Darwin believed, their success in the war of life may have been aided still more by their superiority in the arts. Can we

fix a date for the introduction of bronze into the British

Isles ? Here is a matter of opinion ; but, according to Sir John Evans, the most likely date is separated from the Christian era by about 1400 years, perhaps 200 years less. Iron belongs to a much later time. Probably, in the fourth century B.C., it was known as a metal in South Britain

and about a century later it began to supersede bronze in the manufacture of cutting implements.* Then, as now, England waited for great discoveries to be imported. Many British tribes were hermits of convention, willing drudges to a routine of fixed habits and customs. For example, the highest form of prehistoric bridge- building, the lake-village, came to England not earlier than

the Bronze Age, and we shall see (p. 137) that a lake-village, with its late Celtic handicrafts, existed at Glastonbury when

in its neighbourhood the Romans were at work. But I do not wish to imply that no British tribe had any alertness.

* "Archseology and False Antiquities," by Robert Munro, m.a., m.d., ll.d., F.R.S.E., F.s.A.scOT., page 12. 22 A BOOK OF BRIDGES

As Caesar found out to his cost, there were Britons with an enterprising conservatism, whose war-chariots were managed with a skilful bravery. This wheeled traffic postulates a good road here and there, with bridges over

some deep rivers ; and to this supposition two facts must

be added : the war-chariots were small, and their wheels were primitive, so in a wet climate they would have been useless on unmended tracks. Let us infer, then, that the Roman conquest of England was aided by some British landways which were genuine roads, valued for their service and kept in repair. Is not this implied also by the circula-

tion of Druidism from its venerated heart in Anglesey?

There is no evidence better than that of a just inference

from known events, for events cannot lie, whereas the eye- witness can, and very often he does. Again, to think of the aggression which has travelled

along roads and over bridges, is to think also of the five phases through which civilization has evolved many times. During the first phase a new home is won by invasion ; and during the second phase the new home is extended by invasions, and efforts are made to co-ordinate the separated parts by improving their intercommunications. Then civil and economic competitions not only multiply, but become too active in the body social ; wealth breeds wealth, and poverty, poverty. So the classes grow discordant, and put too much strain on each other, just as diseased lungs poison the strongest heart, or as virile hearts rupture weak arteries. is Here the fourth phase ; it means a gradual disintegration THE STUDY OF BRIDGES AND ROADS 23 brought about partly by the economic war, partly by a re- laxing faith in stern duties and in patriotism. Amusement becomes a passion, even a mania, and discontent seethes under the fool-fury of the merry-making. Then comes the gradual break-up or downfall, which may be hastened by invasions from a younger and more militant country. Each phase may be a long development, sometimes delayed by events, and sometimes hurried ; and the final phase may be postponed for a long time when the strife of poverty is relieved by constant emigration. Human gunpowder does

not explode if it is shipped to a happier country where a day's work brings comfort enough for three days. But the

main point is this : that civilizations have travelled always in the same direction and ended always in a break-up, just as great rivers have flowed always toward their destiny in the sea, though all have changed their beds many times and widened their valleys. When we meditate on the part played by bridges and roads in the rise and fall of ambitious nations, we should

choose a fit environment, such as a Roman bridge crippled by three forms of war: floods, winds, and human strife. France has three or four Roman bridges of this kind, but let us take an Italian example. Brangwyn has chosen the Ponte Rotto, at Rome, and the great ruins of the bridge at Narni. It was Augustus Caesar who erected Narni Bridge, in order to join two hills together across the valley of the Nera, on the Flaminian Way, in the Sabine country. There were four arches of white marble, and the finest one —

24 A BOOK OF BRIDGES had a span of 142 feet. The others varied much in breadth.* The Romans plumbed the river and chose the best natural foundations for their piers; stability was more to them

RUINS OF THE GREAT ROMAN BRIDGE OVER THE NERA AT NARNI, ITALY than a sequence of uniform arches. At the present time only one arch remains ; but under its great vault, as you

* Some authors give various measurements. Legrand says that the biggest arch had a span of thirty-four metres, and that its greatest height, when intact, was thirty- two metres. I cannot do better than refer you to Choisy's " Art de batir chez les Remains," Paris, 1874. Several ancient writers— Claudian, Procopius, and Martial guide Sir William Smith in his remarks on Narni Bridge, but he makes a mistake when he speaks of " three " arches. THE STUDY OF BRIDGES AND ROADS 25 stand on the left bank, you will feel alone with the pity and terror that history brings to those who see past events as clearly as painters behold their concepts. Under this arch at Narni many types of society have passed, with their customs, religions, fears, hopes, ambitions, predatory trades and pillaging armies ; have passed one after the other, and vanished. Tempus edax devoured them ; and now they are studied in relics of their arts and crafts, their mute historians. What permanent social good did they do ? Ought we to be as forgetful of them as they were of their buried generations ? Do they merit any praise at all ? They were proud, of course, and looked upon change as abiding progress, yet the more they altered the more their egotism was the same thing, either intensified and developed, or slackened and degraded ; for the ruling motive powers of their life were but variations of the aboriginal war between the enfeebled and the strengthened. The social rule tried to prove that " Each for All, yet Each for Himself," was the only sane doctrine for men to be guided by in their civil competitions. Everybody had to do much for the commonweal, but yet he was taught to believe that astuteness, even more than upright ability, would enable him to gain control over a number of slaves, or serfs, or servants, whose lot would be what he thought fit to make it. This habitual struggle for Dominion over

others was a friend to the fortunate classes only : it bred microbes in the body social and produced fever and dis- ruption. Is it surprising that civilizations withered away ? —

26 A BOOK OF BRIDGES

Their autopsies have a horrible sameness ; but from their mute historians—their books, pictures, sculpture, potteries, bridges, roads, and other relics of a lasting communism we learn to have faith in useful work done thoroughly. In all that endures there is some altruism. Who would care a fig for ancient Greece if all her mute historians had perished with her incompetent social order ? The Middle Ages exist for us, not in records of their freebooting social aims, but in the work done by a few men of genius and their pupils and assistants. More than one mediaeval century is represented by a few churches, a few castles, a few bridges, a few books, a damaged house here and there, and some weapons, tools, and furniture. All else in the story of its life is tragic and sinister, a wild pilgrimage whose shrines are battlefields and whose ranks are visited periodically by the plague. Again, what are we as pontists to say about the fallen master of many Christian periods, the Roman genius, whose architecture and road-making were copied? The Roman baths were not copied, of course, for a clean body was not regarded as sacred in a Christian way ; but the Roman bridges, roads, aqueducts, were favourite models for imitation. Many a ruler, from Charlemagne to the Moorish zealots in Spain, not only valued their service, but restored them carefully. Mediaeval architects invented very little in bridge-building; their first work tried to recover the lost Roman art; and then, little by little, they added some ideas to their acquired knowledge. Here and there they equalled the ;

THE STUDY OF BRIDGES AND ROADS 27

Romans, as in the great bridges at Montauban and Cahors, which Brangwyn has painted with a vigorous enjoyment but in most of their efforts the design was either too rustic or too lubberly, so ponderous was the technical inspiration. Far too often their ideal of strength was a mere man-at- arms, brave but underbred. Rivers were obstructed by immense piers, for instance, by which spates were turned into dangerous inundations ; and footways along bridges were so narrow that safety recesses for pedestrians had to be built out from the parapets into the piers. Even in exceptions to this rule of ungainliness, as in much Spanish workmanship, architects were overapt to make the use of bridges a tiring penance that wayfarers could not avoid. Thus the bridge over the Sella at Cangas de Onis has a lofty footway shaped like a gable ; to-day it is little used, for the climbing exercise that it offers to everybody is put out of vogue by a modern bridge, its neighbour and rival. In brief, many gabled bridges in Spain* were made narrow enough to be useless to wheeled traffic and friendly to pack

mules ; friendly in a mediaeval manner, for a seasoning of peril was added to their inconvenience. Most of them are without parapets ; and when their rivers flood into roaring spates, and across their giddy pathways a gale sweeps

* See "Northern Spain," by Edgar Wigram, an excellent book. The gable- shaped bridges are mostly of mediseval date. Some fine examples : at Martorell (partly Roman), at Puente la Reina, and across the Gallego river between Jaca and Huesca. To-day these are seldom used because of their steep pitch and of their narrowness. The great one at Orense, over the Mino, is still in daily use. 28 A BOOK OF BRIDGES

dark, eagerly, an Alpinist can enjoy a mad crossing, after between dinner and bedtime. Frank Brangwyn has drawn for us, with as much fidelity as vigour, one of the finest gable bridges, the Puente de San Juan de las Abadesas at Gerona. This bridge has a great historic interest. The Moors left in Spain a peculiar grace of style which native architects often united to their own qualities—a haughty distinction and a lofty ambition. Con- sider the immense nave in Gerona Cathedral, a glorious pointed arch not less than seventy-three feet from side to side, almost double the width of Westminster nave. It belongs to the fifteenth century, yet in the magic of its

youthful hope it proves that its architect, Guillermo Boffiy, was a child of the thirteenth. And the great central arch of the Gerona bridge has in it some of the soaring courage that transcends all expectation in the cathedral nave.* Yet this gabled bridge, though very spacious and attrac-

tive, has less charm than its rival at Orense, in Gallicia, a noble monument 1319 feet long, built in 1230 by Bishop

* Gable bridges are uncommon in Great Britain, but a fine example crosses the river Taff not far from Cardiff. It is called the Pont-y-Prydd. Between its abutments the great arch measures 140 feet, and the footway is so very steep that laths of wood used

to be fastened across it to keep horses from falling. Before industrialism murdered a beautiful countryside the Pont-y-Prydd was a rainbow of stone that shone all the year round. We owe this bridge to a self-educated country mason, ^Villiam Edwards by name, who in 1750 brought his work to completion, after suffering defeat in two previous efforts. My photograph of the Pont-y-Prydd is disgraced by a very hideous commercial bridge that progress has put quite close to the Welsh masterpiece, but, happily, there are many old engravings and pictures that do full justice to William Edwards. Richard Wilson painted the Pont-y-Prydd—an excellent recommendation to a fine piece of handicraft. THE STUDY OF BRIDGES AND ROADS 29

Lorenzo, and repaired in 1449 by Bishop Pedro de Silva. The six arches differ in size, yet their combination is sym-

metrical ; four are gracefully pointed, and the finest one

PUENTE DE SAN JUAN DE LAS ABADESAS AT GERONA, SPAIN rises above the Mifio to a height of a hundred and thirty- five feet, and its brave span, a hundred and fifty-six feet from pier to pier, is the widest of any in Spain.* It is commonly supposed that gable bridges were

* Mr. Wigram, in his finely illustrated book on Northern Spain, reminds us that the Puente Mayor at Orense played a various part in the Peninsula War. It was the pivot of the French operations when Soult led his troops from Coruiia to renew the subjugation of Portugal. At first all went well, but " within two months his army was reeling back from Oporto, without hospital, baggage, or artillery, in a worse plight even than Moore's. He had wrestled his first fall with the great antagonist who was destined to beat him from the Douro to Toulouse." t

30 A BOOK OF BRIDGES

invented by the genius of Gothic architecture. Yet Marco Polo found them in China,* and the Roman bridge of two

arches at Alcantarilla is hog-backed. Usually the Romans

liked a flat road over a river, though it was easier and less expensive to build a steep bridge from low embankments. But the bridge at Alcantarilla, about twenty miles below

Seville, is quite steep enough to be the forerunner of all the gable bridges erected in Spain. There is little in stone bridge building that the Romans did not discover. To this day their aqueducts and bridges are models of thoroughness, and apologise nobly for a civilization that rambled through wonderful achievements into a gradual suicide. While arenas for barbaric sports were being built at a great expense, and while most of the Roman roads circulated war, did many persons guess that their imperial genius in handicraft would outlive their statesmanship by hundreds of years ? Who knows why Rome very often squandered her energy on the least fruitful phases of strife, neglecting those benign phases out of which intellectual vigour ought to have come, age after age, in a continuous zeal for research, and revision, and improvement ? She neglected science, for instance, and her bad example was followed by the mediaeval Church. Not a mind had any inkling of the fact that the brightest hopes for mankind would, emerge from science, like medicinal plants from dry seeds. Innumerable millions died from

* See Appendix I,

t See Appendix II for a description of this Roman bridge. THE STUDY OF BRIDGES AND ROADS 31 ignorance because Pasteur and Lister were not evolved until the races of man were perhaps a million years old. In the creeping progress of humanity the dead have been mocked by every good discovery ; there has been nothing so cruel as a healing success, for it has ever been too late by thousands of years.

To visualise this truth in the strife of man is a great

trial to any mind ; but yet it is the one thing that a pontist cannot evade without being disloyal to his honour as a student, since he knows that strife has ruled over the tremendous drama which has had for its theatres the highways and byways, and for its actors the races of man, continuously at odds with one another. If this truth had

to be deleted from the drama, then I, for one, would not be a student of roads and bridges. As well read the Greek tragedians after deleting all the passions that make for contests and crises. So let us try to get nearer and nearer to strife, the most

active genius in the life of our subject. Why has it set tribe against tribe, nation against nation, class against class, tradesman against tradesman, intellect against in-

tellect ? Must we clear from our minds all the shibboleths

of modern idealism ? and feel pity for the supergood when they chatter to us about their isles of dreams, their unsub- stantial fairy places, where " cosmic conscience " reigns with " the universal brotherhood of man," and where " everlast- " ing peace promises never to be effete and sterile ? When a Wellington of Finance erects a Peace Palace, at The 32 A BOOK OF BRIDGES

Hague or elsewhere, are we to be glad that the pomp of irony did not leave the world when Gibbon died ? Should we gain anything at all if we were bold enough to condemn the whole past life of the human race? Ought we to pass with Carlyle from democratic hopes into hero worship, and thence into a hot-brained conviction that faith in mankind is impossible? Are we to suppose that man has transformed into instincts the worst habits he has acquired, so that his ultimate destiny upon earth will be determined by his attitude to these instincts? Will he obey them or will he try to conquer them ?

Again, is there a glint of hope in the hysterical words that came to Charles Dickens when he wrote as follows, after a visit to Chillon ?— " Good God, the greatest mystery in all the earth, to me, is how or why the world was tolerated by its Creator through the good old times, and wasn't dashed to fragments." You see, Dickens understood the terror of strife, but he made no effort to be calm with Darwin, who knew that the evolution of man could not have happened if nascent humanity had been unfit to endure the sufferings of its daily contests both against Nature's violence and against a terrible fauna. Thus a pitiless character was thrust upon primitive man by the environment in which unlimited strife worked his development ; and what the ages have evolved only a long future can amend in another evolution. What Dickens called unpardonable cruelty was to the distant past what strikes are to our own time, a weapon, a phase of war, approved by MW^''

li?^^

;

THE STUDY OF BRIDGES AND ROADS 33

public opinion ; and let us remember also that the cruelties which a hard life has bred, and turned into customs, have not shown an egotism fiercer than that primal necessity which has compelled life among the species to feed on lives. Dickens himself, while writing his condemnation of the past, was nourished by the death of many living things was in himself a mysterious alembic that transmuted food, slain life, into benign health and action. Had he been logical in his feelings toward strife he would have had mercy on those forms of life that feed mankind ; in other words, he would have died of hunger rather than be cruel ; but, naturally, the manifestations of strife hateful to him were those that happened to be far off from his needs and sym- pathies. Yet he ought to have seen in the national efforts of his time that strife, though easy to rebel against, is woefully difficult to improve, since even kindness of heart when shown in promiscuous charities may unseat from their thrones in the public mind many good racial qualities, doing as much harm as ever was done by mediaeval brutality. "Let me think" should be everybody's motto; nothing less than arduous thinking can save us from the cant and the sentimentalism which at the present time enfeebles England.* Let me give you an example. Yesterday I was

* This was written several months before the outbreak of the Great War, which England had invited by allowing her peace-fanatics to bill and coo in her foreign politics. Instead of reading the arrogant books on blood-lust that nourished the well- advertised aims of Germany, England played the fool with epicene triflers of all sorts and conditions, and turned her back on Lord Roberts, her truthful statesman. She 34 A BOOK OF BRIDGES talking to a friend about the mediaeval battle-bridge. Put- ting before him Frank Brangwyn's excellent sketch in water- " colour of Parthenay Bridge, I said : This fortified gateway belongs to the thirteenth century, and through its machicolations red-hot stones and boiling oil were poured down many times upon the head and shoulders of an attack. The babbled about peace until she received from the Prussian junkerdom proposals so abominable that they brought her to the fighting point of honour ; and then she cried out for a million new soldiers. Yet British statesmen, even then, paid many compli- ments to their bad old habit of ingenuous pacifism. No political dove wanted the world to believe that there had been anything of the eagle in his attitude to German war-culture. As if this truism could be a consolation to heroic little Belgium, the Jeanne d'Arc of nations, whose safety England had guaranteed, and whose experiences in the hell of Teutonic savagery had left her scorched, mutilated, yet unconquered. Can anyone explain why the word " peace " has been hypnotic to Anglo-Celtic minds ? Every phase of human enterprise must be a phase of war, because it claims a battle- toll of killed and wounded and maimed. Poverty alone is such a terrible phase of permanent war that pacifists ought to devote all their energy to its gradual betterment. Even the accidents of civilization^street and railway accidents, colliery explosions, sea tragedies, and so forth—equal in a century the casualties on stricken fields. If only our sentimentalists would try to think ! Then they would learn that the occasional strife between armies never destroys in a century as many lives as the multiform continuous strife called peace. And we may be certain that all the human war of the future will not belong to " peace " alone. The birth of many a new era will be aided by the fierce midwifery of military and naval warfare. To-day is the 26th of September, 1914, and England in two months has nearly outgrown the routine claptrap of her effete idealism. To-day she is eager to bear any amount of self-sacrifice ; two months ago her peace-mania was a crime against the Empire and against her treaty obligations to Belgium. She had no faith in National Service till Germany had passed from arrogant warnings to barbaric aggressions. Agadir was not enough to put common sense into her dreamful solicitude about international " peace." " Peace " in her home affairs she never tried to get ; she wanted peace to conquer the nations, not to cure conflicts industrial and the Irish Question. What a comic tragedy ! And let us remember that our peace-fanatics, though silent to-day, are not dead. Their influence will become active again after the overthrow of Germany. New mischief will flow from their sentimentalism. To lose the flower of British youth, while keeping our peace-fanatics : here indeed is a sinister fact. THE STUDY OF BRIDGES AND ROADS 35 gateway was built between 1202 and 1226, not without help from English money, for the Josselin-Larch^veques of Parthenay were allies of the Anjou Plantagenets, who gave us English kings ; but a few years later our English troops were driven from Parthenay by Louis IX, called St. Louis.

Can't you imagine the assault ? Would you care to rush " that gateway in a thirteenth-century manner ? My friend, a Quaker, was scandalised. " Rush the gateway?" he cried. "Red-hot stones and boiling oil!

What imbecile savagery ! Thank goodness, we are not

savages now ; life has improved wonderfully. To-day most

men of sense fear war, and those who don't fear it scorn it for moral reasons."

"Are you sure?" I asked. " Do you really believe that the history of this old war-bridge is more strifeful than the

industrialism of to-day ? Is it an act of peace when a trust 'corners' some article of food, or when a limited liability concern kills all competition from little neighbours, whose wives and families can't get rid of hunger because business has failed? Those who attacked the bridge at Parthenay were armour-clad, while those who suffer in trade wars from the greed of co-operative egotisms have usually no self-

defence, as their capital is small. Don't you see, then, that from machicolated towers to millionaire tradesmen is but an evolution in social strife? Chivalry did try to put some generous feeling into mediaeval warfare ; and how much feeling of chivalry do you expect to find in the battles of industry? Are the strategic victories of finance more 36 A BOOK OF BRIDGES humane than were the politics of the Black Prince ? Do they harm the defeated less, or more? And can you explain, old chap, why it is that Quakers, Jews, Hindus, though they fight for money with an astuteness that never flinches, prattle about peace after office hours? Their ideal of peace includes all warfare except that which employs battleships and big battalions. Myself, I would sooner lead an attack against the Porte St. Jacques on Parthenay Bridge than be opposed in trade by a wealthy firm of shrewd Quakers, whose great skill in the combats of trade would soon ruin me. I shouldn't have a chance of doing credit to myself in a dangerous adventure."

There is nothing more odious than the modern cant about peace. But a pontist soon learns that strife of every sort is a phase of war. Indeed, whether roads and bridges aid a pilgrimage of the sick, or an army of Crusaders, or a primitive migration, or the ramblings of charity, or the

enterprise of monasteries ; whether they help a mediaeval pope at Avignon to thwart the land-hunger of a French king, or enable modern life to turn industrialism into a world-wide Armageddon whose scouts are lying advertise-

ments ; whatever they do or have done their history brings us in touch with the same human motive, a desire to win victories. James Martineau went so far as to picture the strife as absolutely barbaric. He said: "The battle for existence rages through all time and in every field ; and its rule is to give no quarter—to despatch the maimed, to over- take the halt, to trip up the blind, and drive the fugitive J o Q ^ Q

° H O H

> H O

THE STUDY OF BRIDGES AND ROADS 37 host over the precipice into the sea." Tennyson also went too far when he wrote about strife ; too far, because he did no more than skim along the surface of a primordial truth, by which man's history has been made a part of Nature's. From Tennyson we gain no help at all ; he tells us merely " that hope of answer or redress " must come from " behind the veil." In his opinion Nature cares for nothing, so careless is she of the single life, and so ready to let a thousand types go. Yet her realms teem with miracles of con- tentious life, and I cannot think of any great extinct species that I should care very much to meet in a country walk. I do not wish to hob-nob with the Iguanodon, for instance.

When John Stuart Mill complains that "nearly all the things which men are hanged or imprisoned for doing to one another are Nature's everyday performances," he forgets the far-reaching harm that men can do within the tolerance of " " Old Father Antic, the Law ; and, besides this, he forgets to explain how a world of organisms ruled by hunger and thirst and passion, and dependent on innumerably various climates, could be other than Providence has decreed. To talk as Mill did is to imply that Nature sins against us, and against herself, when she allows any species to grow completely unfit for the gift of life. Yet her aim is to protect life from the suicidal fertility of lives, so that the whole economy of, Nature demands death in the highest interests of the future. When we die we do an act of charity to our children and grandchildren ; for if each of us lived to be active at ninety, the world would need a much smaller 38 A BOOK OF BRIDGES population of young people. It is our frail tenure of life gains that renders a high birthrate necessary ; and progress more from the enterprise of vigorous youth than from the too cautious knowledge of old age. So I do not understand the pother raised by Mill and others over the benign discipline of death that Nature wields as a servant of the Eternal. Believe me, a pontist can never solve even one problem in the law of battle if he lets himself be scared into a re-

volt against natural forces ; scared by the incessant tragedy that each day's little trip along the highways of history brings in a challenging manner before his mind's eye. He must try to protect himself with humour and irony and scorn, as Thackeray tried to save himself from a feminine heart. The main point is that he should learn to live outside himself; then self-pity will not be his troublesome guide through the labyrinths of strife.

Cardinal Newman asks us to believe that human life has been terrible—" a vision to dizzy and appal "—because mankind has been punished by God for some aboriginal sin too abominable for mercy and forgiveness. This doctrine

is completely dark and horrible. If it were illumined on

one side only, like the moon, it would invite the companion-

ship of thought, but it gives no light whatever. Indeed,

it implies that no civilization has been free to improve its own lot and to get progressive reason from the large brain of man. To blame God for our own follies—to say that our social acts are wild and foolish because we are being THE STUDY OF BRIDGES AND ROADS 39 punished by Heaven for a sin of ignorance committed by man in the babyhood of the human race—what is this but a charge of illimitable cruelty against the Creator? Be- sides, we learn from the much nobler doctrine of evolution that human nature, despite all her wilful fondness for wrong actions, has crept up and up from a very low beginning, in an ascent continually wonderful, though infinitely slow and tragical. The accumulated progress excites in me as much awe as I should feel in the presence of a resurrection from the dead. Indeed, what is evolution but a vast drama of resurrections, by means of which base forms of life have

become gradually better ? Can anyone suppose that Milton, had he been a contemporary of Darwin, would have turned from the endless hopes that evolution ought to inspire, just to dally with fallen angels and with an errant couple in the

Garden of Disobedience ? And can we suppose that New- man would have written his famous page on the doctrine of original sin, had he not turned his back on modern thought

and knowledge ? Amid the doubts and difficulties that trouble this medi- tation on strife, just a few things are bright and clear-eyed, like illumined windows which on dark nights cause jaded

tramps to feel less their lone wayfaring ; and these things I

have watched for years in the life of bridges, where their

activity never ceases. It is clear enough, for instance, that custom and convention have acted as narcotics on the mind, sending reason to sleep. This explains why human strife has never turned to the best use the great opportunities 40 A BOOK OF BRIDGES that each generation has inherited. To custom and convention, mankind has owed the social rule which has sown the seed of death in every civilization ; the rule of illogic and discord, " Each for All, yet Each for Himself." Let us see this rule in operation on the highways, taking care to note how it has inflamed egotism and deadened both the sense of honour and the spirit of citizenship. The just and beautiful principle that every man lives by his mother the State, and that he must do good for the benefit of the commonweal, was enforced upon mediaeval landowners by the trinoda necessitas, or triple obligation, which among other duties made the upkeep of roads and bridges a general charge on all owners of the English soil. Not even the religious houses were exempted, though the State favoured them in other ways. But the second principle of the social rule—" Each for Himself"—interfered constantly with the first principle, bringing trouble after trouble into

the administration of the highways, as into all other useful and necessary things. Landowners transferred their duties to their tenants, and very often the tenants made negligence a habit, until at last the Law and the Church became equally active for the people's benefit. Again and again bishops offered "forty days' indulgence to all who would draw from the treasure that God had given them valuable and charitable aid towards the building and repair" of a poor bridge ruined by neglect, or of some quagmire which had been a decent road.* It happened in the year 1318 that

* See "English Wayfaring Life in the Middle Ages." J. J. Jusserand. The chapter on roads and bridges. THE STUDY OF BRIDGES AND ROADS 41 the Law pottered into action because a timber bridge at Old Shoreham, in Sussex, had been scandalously ill-used by those who were responsible for its upkeep. Half of it had fallen into the river. Year after year an evident crime against the State had gone on publicly, yet no one had taken steps to make the dangerous condition of the bridge a subject for legal enquiry and punishment. The village grumbled, of course, but grumblers have never had any

initiative of their own ; unless a man of action has come to be their conscience and their leader, they have done nothing. Their energy has evaporated in talk, like steam from a boiling pan. It was not until the bridge had fallen that the village hummed intelligently like a hive of bees, and set itself to work. What could be done then ? Who was the landowner? No less a person than the Arch- bishop of Canterbury. Are we then to believe that in 1318

a Primate of England scamped his public duty ? Was his attitude to a timber bridge inferior to that of the high priests of ancient Rome, who called themselves pontifices because they built and repaired the Pons Sublicius, a bridge of stakes at the foot of Mount Aventine ?* The sheriff and

his officers had a different question to consider ; they would wish to know whether the Archbishop had been an astute man of the world, whether he had made his tenants responsible to the trinoda necessitas. If not, then he and

the Law were in a fix, and peasants over their ale would guffaw with malice. But enquiries proved that his Grace

* There has been much controversy over the position of the Pons Sublicius. (See p. 140.) 42 A BOOK OF BRIDGES was a canny landlord; the tenants alone ought to have mended the bridge ; and so the Law was free to act with a vigour that common folk knew too well. Its agent was the bailiff, good Simon Porter, and Porter set out at once to collect money from the tenants. If any tenant either declined to pay his share or was unable to pay it, then the bailiff put his hand on some marketable property, perhaps a few sheep, or a cow, or "a gaggle of geese." The necessary thing was to take enough; never an easy thing to do in the country, as no one cared to pay a fair price for escheated live stock. The peasant has ever been at heart a pawnbroker. But Simon Porter had no reason to look upon his troublesome work as a high office of trust important enough to keep his name alive for six hundred years. It was when he met Hamo de Morston, a truculent fellow, that Simon entered into history. Hamo de Morston was a logical egoist, he fought for his own hand only, trying to use the State at a trivial cost to him-

self ; but now this amusement, after prospering for years, brought him suddenly face to face with legal pains and penalties—a thing most irritating to a bad temper. So Hamo refused to pay; and his fury was terrific when Porter confiscated a horse. Even then he was not defeated, for he set lawyer against lawyer, and one day a petition was sent by him to King Edward II. The rascal was a good fighter, but his appeal to the supreme authority failed; the bailiff's action was approved, and Hamo had costs to pay. a

THE STUDY OF BRIDGES AND ROADS 43

As for the bridge, it was repaired, and repaired very well. Twenty years ago it was in use, a shaggy and venerable structure, not yet crippled by old age. Then certain highwaymen, popularly known as road officials, visited Old Shoreham, and there they tried to prove that a bridge admired by landscape painters was unfit for a commercial time. The poor bridge ! At this moment it has no charm at all ; not only is it dull, it is neat in a shabby way— discord in good surroundings, like bankruptcy at a wedding breakfast. So we pass from Hamo de Morston to our own roadway officials, and find ourselves in the presence of a public bridge injured by public servants. To Hamo we can give a little sympathy, he fought for his creed of self and paid costs, whereas highway boards have never been fined for spoiling old bridges. Perhaps they do not hate venerable architecture, but they belong to a system of

public service that is ill-equipped for its work, receiving neither criticism from the newspaper press nor supervision from county committees of independent architects. That the State has been wronged by these public ser-

vants is known to all artists and antiquarians ; also the fact is advertised by the great many hideous railway bridges that demean towns and blemish the country. In this matter, as in others, the State must defend her own just rights, so as to get by compulsion what a free egotism has declined to give—efficiency and good taste. It is possible that England has not suffered a great deal more than the

Continent ; for even in France, despite the excellent ad- 44 A BOOK OF BRIDGES

ministration of the Fonts et Chaussdes, crimes against noble bridges have been committed, as when the second ancient bridge at Cahors was lost in a storm of local party politics. But England happens to be poor in great old

bridges, whereas the Continent is rich ; we cannot afford to lose even the modest little ballads of arched stone which have resisted floods for many generations, while working as necessary drudges in the making of England. Trivial they are when compared with the bridges of Isfahan or with many of those in France and Spain, but yet they are hallowed by time, and they mimic the gentle rusticity of English landscapes. It is a crime to spoil them, because modern bridges for heavy traffic can be built at a lesser cost near by the little mute historians. To the Scotch, on the other hand, many a fine old brig

is a Burns of the highways ; and this sentiment for history and for sylvan poetry has kept from the cruel hands of industrialism some very attractive single-arched bridges, and some long bridges also, notably the rhythmical Brig of Stirling, which Brangwyn has chosen as an example of quiet good taste in mediaeval civic architecture. The Brig of Stirling is a Scotch citizen of the dour old school, but warmed with an undercurrent of that kindly emotion which even the canniest Scot is glad to show off when he is away from business. I am inclined to think that not even a militant suffragette would have folly enough to attack the Scotch brigs ; she would be fascinated by their names, and this would keep her out of mischief. Such a name as the Brig THE STUDY OF BRIDGES AND ROADS 45 o' Doon is music combined with a racial vigour. No weak people would have invented it, and no dull people could have retained such a poetic name. The Irish also are fond of bridges, like the true unspoiled Welsh. As late as a century ago Irish peasants

THE OLD WAR-BRIDGE OF STIRLING

were pious in their attitude to any bridge that crossed a

dangerous river ; they saluted it reverently because of its friendliness to poor wayfarers, and because good thoughts come from simple hearts. As for the Welsh, thanks partly to their Celtic blood and partly to the waywardness of their rivers, they have been known as pontists for a very long 46 A BOOK OF BRIDGES

time. In the romantic hills their bridges seem to belong to Nature herself, so lovingly have they been united

to the spirit of ancestral landscapes ; whereas the industrial parts of Wales make the bridges of trade into vile objects,

as if beauty has no right to a home where money is earned out of coal mines, and ironworks, and the debilitating factory system. Far too often the industrial bridge every-

where is like an ill-used highway uniting the purgatory of a seared district to some hell or other invented by poets or by priests. There are many such bridges in the Staffordshire Black Country, and in the scarred Potteries, where an ebon meanness lives with jerry-builders, and where puny drab children take from the present generation the youth that endures. What would a Dante think in the stricken fields of

industrialism ? And why is it that only a person here and there, after compelling himself to leave the atmosphere of

custom, sees our industrial war clearly, and views it in its

relation to the body social ?

The truth is that our creed of self has become instinc-

tive ; we cannot without an effort live for an hour outside

our personal interests ; and thus the beautiful principle

" Each for All " has to be kept alive by a host of active laws that encircle us with compulsion. Where there is no compulsion we are governed by our preferences. If we like bridges, for instance, we try to protect them from ill-

if usage ; but they are indifferent to us we care not a straw when engineers add half a dozen uncouth viaducts to the many other misdeeds which they have thrust upon the THE STUDY OF BRIDGES AND ROADS 47

State. Instead of regarding all bad public work as a sin against the commonweal, we let ourselves be ruled by the creed of self even in our best efforts to serve the State properly. Is our egotism better or worse than that of the Middle Ages? This seems to be a matter of opinion. Thorold Rogers believed that medisevalism in a good many respects was kinder than our industrialism ; and the late Russel Wallace regarded "our social environment as a whole, in relation to our possibilities and our claims," as " the worst that the world has ever seen." On the other hand, a great scientist from his laboratory has told us that " the sun rises on a better world every morning." Gracious ! If the sun could speak to us about his complete knowledge of mankind, if he did not obey the law of silence that rules over the greatest motive-powers and creative agents, our conjectures would be less wayward, for sunrays would whisper into our ears the story of the most evil civilization in the whole strife of mankind. In this matter the sun would be authoritative ; but how can we poor mortals expect to see the whole past truly when we are half blind to the significance of our own social life ? Besides, it is enough for us to see how one civilization has differed from another, and how in

many respects all human life has been like the sky, always the same elementally, but never quite the same in colour

and form, and in the effects of strife. A pontist, as he journeys through present-day England, sees very clearly the difference between our commercial 48 A BOOK OF BRIDGES

of joint time and the past ; for industrialism is plainly out with that which is normal in organic growth, and its workmen are conscious of the unstable energy bred and frittered away by hurry and speed-worship. Consider those dread "hives of industry" where trade bridges are makeshifts, and where the jerry-built villa or cottage is repeated thousands of times, and always in mean streets. Do they not bear witness to the feeling of insecurity from which our

age suffers ? I shall be told that many things are very well made, as in the case of battleships, motor-cars, engines, steamships, guns, rifles, artillery, surgical instruments, expensive clothes, implements for games, and gigantic metal

bridges ; but in this good craftsmanship, tradesmen are

thorough because they dare not be slipshod ; they fear to

turn out work that would endanger human life, and busi-

ness would fail if they angered the specialists of luxury and of sport. Where they are free from restraint, as in work for ordinary households, tradesmen manufacture trash and prosper. In fact, the quicksands of cheapness

are to most people in England what cheese in a trap is to

mice, or what seasonable bait is to fish. So widespread is the feeling of insecurity that the poorer classes do not think

it worth while to buy enduring goods and chattels. Instead of practising a thrift that would hand on furniture to their grandchildren, they say, "Never mind perhaps these things ; may last our time." And this dull pessimism in the creed

of self is the most wretched phase of strife that a pontist has to connect with the circulation of trade enterprise. CANNON STREET RAILWAY BRIDGE, LONDON

THE STUDY OF BRIDGES AND ROADS 49

Even the prehistoric tribes wanted to be remembered by their posterity, so they built enduring barrows or set up cromlechs to their ancestor-worship, this being their spiritual bond between past and present and future. In the

Middle Ages also, though disease and filth and bloodshed made life as uncertain as a game of chance, the social egotism that built and purchased for itself had faith in the future, and claimed and got full value for its money. In fact, from nearly all specimens of mediaeval handicraft we may learn why the peoples of Europe survived terrible crises and bred men of genius to represent them for ever. In each race, and particularly in ours, there was a wonderful endurance, certainly based on the creed of self, but admirable all the same, like the tough elasticity of yew timber. The ruling egotism was honest in nearly all its private work, but when it was expected to be equally thorough as a public servant, then a habit of dishonesty appeared in handicrafts, sometimes to be followed by new laws or by threatening proclamations. Again and again the conscription of the archery laws was imperilled by bowyers and fletchers and merchants, who formed "rings" and flooded the markets with nefarious work to be sold at high prices. Certain bridges, also, and notably the one at Berwick-on-

Tweed, fell so often that the supervision of town authorities must have been exceedingly lax. On this point, M. Jusse- rand says : —" London Bridge itself, so rich, so useful, so admired, had frequent need of reparation, and this was never done until danger was imminent, or even till catas- 50 A BOOK OF BRIDGES trophe had happened. Henry III granted the farm of the bridge revenues to his ' beloved wife,' who neglected to maintain the bridge, appropriating to herself without scruple the rents of the building ; none the less did the king renew his patent at the expiration of the term, that the queen might benefit ' from a richer favour.' The out- come of these favours was not long to wait ; soon it was found that the bridge was in ruins, and to restore it the ordinary resources were not enough ; it was necessary to send collectors throughout the country to gather offerings from those willing to give. Edward I begged his people to hasten (January, 1281), the bridge would give way if they did not send prompt assistance ; and he ordered the archbishops, bishops, all the clergy, to let his collectors

' address the people with pious exhortations ' that the sub- sidies should be given without delay. But the money thus urgently needed arrived too late ; the catastrophe had

' already happened, a sudden ruin ' befell the bridge, and to repair this misfortune the king established a special tax upon the passengers, merchandise and boats (February 4, 1282), which tax was enacted again and a new tariff put into ." force on May 7, 1306. . . What were the citizens doing while Henry III and his dear wife ruined the bridge by confiscating her revenues? Did they believe that everybody's affair was nobody's business, and that they would be asked to mend the bridge if they drew attention to her condition ? As to Edward I, he kept his hand away from his own pocket, and personated ;

THE STUDY OF BRIDGES AND ROADS 51 charity that for ever begs, " Each for Himself " was a policy that suited Edward ; and his orders to the clergy proved that he knew it to be a policy which his loyal subjects followed as a habit. Hence the " pious exhortations," with indulgences also, we may rest assured. The whole story is pitifully ironic. London had no other bridge over the Thames, yet the people looked on while a king and his wife played the part of bridge wreckers. Some protest there must have been, for London Bridge—a great street of timber houses—was more populous than many a village and the tenants, like other Englishmen of those days, had no wish to be plunged into cold water. According to

Stow's "Annals," five arches fell, so many houses also were lost, perhaps with their inmates. M. Jusserand believes that during the Middle Ages our English highways fared no better than London Bridge. His verdict runs thus: "Though there were roads, though property was burdened with obligatory services for their upkeep, though laws every now and again recalled their obligations to the possessors of the soil, though from time to time the private interest of lords and of monks, in addition to the public interest, suggested and directed repairs, yet the

fate of a traveller in a fall of snow or in a thaw was very precarious. The Church might well have pity on the way-

farer ; and him she specified, together with the sick and the captive, among those unfortunates whom she recommended to the daily prayers of pious souls."

There; is a great deal of evidence to justify this verdict, ;

52 A BOOK OF BRIDGES

but evidence in history depends on its choice ; and in Thorold Rogers there are other facts that leave England with some efficient mediaeval roads, along which horsemen could travel rapidly. Perhaps Rogers may have set too much store by his data ; but when we s.tudy all the evidence, when we balance it carefully, and visualise all its pictures of well-tested negligence and crime, one thing is beyond all " doubt : that the social rule, Each for All, yet Each for Himself," was a national catastrophe. Its first principle had a very precarious life, though incessant compulsion tried to drive it home to the people's fear of revengeful laws whereas the second principle—" Each for Himself"—was so popular as a creed that even the divine mysteries beyond death were assailed by egoists, who thought they could buy a place in heaven by giving lands and goods to the

Church, no matter what harm they had done in a brief life upon earth. Study Erasmus in his wayfaring letters, and you will breathe the atmosphere of the Middle Ages. p §

S < )^ w

" X X H

W [I] o S "S w Si o

U o w Q PS

pa < o w go

O ft.

iL.-

PONT SIDI EACHKD AT CONSTANTINE, ALGERIA. BUILT IN I908-I912

The span of the great arch is 70 metres. The work illustrates the longevity of custom and convention, being inspired partly by Roman aqueducts and partly by the two famous bridges over the Tech at Ceret, in France, one of which dates from the year 1321. The span of its great arch is 45 m. 45 cm.

Ill CUSTOM AND CONVENTION YET a pontist must be exceedingly careful when his tramps through any period bring him in touch with ethical problems. He should try to live on the highways of history, not in order to pass judg- ments on vice and on crime, but because he wants to see clearly, under the form of visual conception, why social 53 54 A BOOK OF BRIDGES concord and equity have never fared well, even the best forms of civilization being only half-educated barbarisms that allow their strife to be drilled by a vast number of active laws. These phases of compulsion go on increasing, yet they fail to resolve into harmony those rapacious egotisms that compete against each other in the body social like microbes in living tissues. As soon as a pontist understands his wayfaring through history, as soon as he feels at home in the general atmosphere of the human drama, he is

glad to be a realist ; then nothing that societies do or have done seems unexampled and inexplicable. To him, for example, the infanticide practised age after age by savage tribesmen is not more terrible than the death of babies in the slums of civilized towns, or than the degradation brought before his mind by the alert philanthropy that saves little English children from cruelties. To him, again, the slaughter on a great battlefield is not more woeful than the annual sacrifice of lives in street accidents, and railway smashes, and mine disasters, and sea tragedies ; as well as in games and sports, in nursing the sick, and in all trades and professions. He is not scared by the fact that the sum of human life is war, but he is scared by the primordial customs and conventions that make the incessant war infinitely less humane than it could be and ought to be. So a pontist in his attitude to history is a sociologist, and not an abstract moralist. Each body social and its systems of circulation are to him what patients are to medical students in a hospital ; he has to learn to be attentive to all dis- ;

THE STUDY OF BRIDGES AND ROADS 55 ease and to make his diagnoses thoughtfully. Even then frequent mistakes will occur. One thing he must regard as his clinical thermometer: it is the truth that civilizations in their intercourse with right and wrong have been governed by habits and customs and conventions, which have caused

most men to be other men ; so that most human actions, whether studied in old history or in the current routine of living, are mere quotations from other human actions, instead of being like original ideas in a well-ordered composition. In other words, the ordinary human brain has tried

to be automatic, as if to be in harmony with the rest of the vital organs. Now the architecture of bridges, like that of huts and houses and cottages, never fails to keep before our minds the awful slowness of each reluctant advance from custom

to custom, and from convention to convention. I have no

words to describe the terror that comes to me when I find

in daily use a type or species of bridge so aboriginal in its

poor workmanship that a forerunner not only similar to it, but as rudely effective, may well have been employed by the earliest Flint Men, whose delight in imitation was stimulated by all the bridges which Nature had created. Even more, at this moment in England, and even in busy Lancashire, where to-day's machinery abounds, there are primitive bridges which are not even primitively structural bridges which need in their making not more thought than is given to a difficult sneeze when we are troubled by a cold

(p. 60). When I look at them and think of the myriads of 56 A BOOK OF BRIDGES generations which in different parts of the world have used

bridges akin to these, I am so awed with fear that I feel like a baby Gulliver in a new Brobdingnag where everlasting conventions are impersonated by brainless giants whose bodies are too vast for my eyes to focus. Often, too, I say to myself: "In the presence of this dreadful conservatism, this inept mimicry that endures unruffled by a thought for many thousands of years, you are as futile as a single microbe would be on a field of battle. Or imagine that the microbe is in Westminster Abbey, and that it has a blurred sense that makes it dimly conscious of all the many historic things there gathered together ; then you have a figure of yourself in your relation to the mingled good and bad in history. For the Abbey shows in its architecture that convention, though a bane to ordinary minds, is the grammar of progress to the rare men of genius who from time to time shake the world free from its bondage to fixed customs and routines, and compel it to move on to other routines and customs, where it will dawdle until other geniuses come out of the dark and find in new mother- ideas a compulsive force that works a new liberation."

This, indeed, is the only encouragement that I am able to perceive when I watch in history the periodical strife between inveterate conventions and the mother-ideas of genius. In the case of bridges, for example, the first mother-ideas were those that enabled a primitive craftsman here and there to copy with success the least difficult of Nature's models. What this man achieved was repeated o

THE STUDY OF BRIDGES AND ROADS 57 by his tools, the ordinary men of his tribe; then other tribes got wind of the discovery and began to make similar bridges, until at last several conventions were formed, and they became widespread and stereotyped. When a convention was very simple and also effective for a given purpose, no one wished to see it developed, so it entered that domain of infertile mimicry where stone tools and weapons remained unpolished for years to be reckoned by scores of thousands. If experience had shown that chipped flint in a rough state would neither cut wood nor break human skulls, then at an early date polishing would have been found out by a savage of genius who yearned to prove that his invention could be made useful ; but rough-hewn stones were rudely efficient, so mankind settled itself in a routine and plodded on and on automatically. And thus

it was also in the case of many jprimitive bridges which became so firmly fixed in conventions that now they seem to be contemporary with nearly all the ages of human strife. Not in any other way can we explain their present use by many Europeans, as well as by the natives of Asia, and

Africa, and America (p. 145). On the other hand, when a primeval bridge did not serve its purpose efficiently, when it was useless in tribal wars and dangerous in rainy seasons, then a mother-idea paid it a visit from time to time, as we shall see in the next chapter. Whence the idea came we do not know. It entered a mind that was ready to receive it, coming unbidden from a place unknown like an abiding quest from a spirit world. —

58 A BOOK OF BRIDGES

The mind that welcomed the idea was neither masculine nor feminine, it was both, a thing androgynous, for genius has ever been a single creative agent with a double sex. The tools with which genius has worked—the selected traditions and conventions, the acquired knowledge, the original observation, and the handicrafts of social life have ever been plain enough, of course ; but to see and admire tools is not to understand the advent of those imperishable ideas which not only transform history, but turn all ordinary men into their mimics and mechanics. For instance, whenever we light a candle or a fire we obey the genius of a Palaeolithic savage, who, with sparks beaten from flint into some inflammable grass or moss or fluff from cocoons, brought into the world the earliest missionaries, artificial light and heat. Similarly, whenever we walk across a timber bridge, whether old or new, we are servants to the earliest savage who with a stone axe cut down a tree, causing it to fall from bank to bank of a river or chasm. Delete from history even two mother-ideas—the invention of wheels, for example, and the evolution of arched bridges from Nature's models—and how many civilizations would you cancel ? Omit from the annals of our " modern de- " mocracy not more than three mother-ideas : the discovery of steam as a motive-power, the discovery of microbes, and the use of metal in bridge building. In a twinkling we go back to the middle of the eighteenth century, when hospitals were cesspools,* when surgery and medicine were

* See the most valuable book on Domestic Medicine by Lister's little-known forerunner, Dr. William Buchan, of Edinburgh. The eighteenth edition was published in 1803, and its pictures of social life are most helpful to a pontist. THE STUDY OF BRIDGES AND ROADS 59 wild empirics, when travellers in stage-coaches longed for the general Turnpike Act (a boon delayed till 1773), and when England was unspoiled by jerry-builders and a factory system. A pontist, then, if he understands his subject, looks upon genius as the solar system of human societies, hence he cannot be a willing servant to any mob-rule or mob-worship.

On the contrary, he would gladly see in every town a fine church dedicated to the men and women of genius who with great mother-ideas have tried to better the strife of human adventure. For two reasons I used the phrase

" have tried to better." In the first place, the constituents of new knowledge, when mingled with the old customs and

conventions, lose much of their good invariably ; and, next, the amalgam thus formed may become explosive. At this moment we see in our new art, the art of flying, how pre-

carious is the charity that mother-ideas bring into the battlefields of competition. What aeroplanes can do in war is already the only consideration that the mother-idea of

mechanical flight receives from the most alert minds ; and very soon military engineers will be called upon to invent bomb-proof covers for every strategic bridge which cannot be displaced by a tunnel. So we compel airmanship to torment us with visions of wrecked cities, when she ought to delight us with bird's-eye views of happier countries.

In brief, the more we study mother-ideas the more clearly we perceive that they in themselves are phases of ;

6o A BOOK OF BRIDGES

strife, for they have power to do harm as well as good. Providence for ever tries to quicken the inept human mind,

since no blessing is granted to us without its attendant bane. Electricity has dangers of its own, so has fire

Pasteurism has dangers of its own, so has food ; radium

is curative and very perilous, like the sea or the sun ; and

all other good things ask us to pick our way with care between danger and utility.

The most tragic element of all in human indiscretion is the mindless routine which has deadened the brain of

ordinary men. There is in Lancashire, for example, a charming valley where six or seven old bridges make a few minutes' walk a very long pilgrimage through the history

of primitive conventions. Wycollar the valley is called, and antiquaries and pontists ought to go there at once, but not in motor-cars that devour topography as well as miles.

One bridge is exceedingly low in the scale of thought and

skill ; indeed, no prehistoric tool or weapon stands below it.

Even the Adam of Evolution, if he ever lived in rock- strewn places, had common sense enough probably to choose a flat stone and to lay it across a deep rivulet, so as to save his children from danger. Such is the most primeval of the Wycollar bridges : three schoolboys could make a smaller one between two April showers. For the stone is not a huge slab ten feet long by four wide, such as we find not far from Fernworthy Bridge, Dartmoor; nor is it like the single slab over the Walla Brook on Dartmoor. It is a long lintel-stone, and in eight or nine strides a little girl THE STUDY OF BRIDGES AND ROADS 6i would cross it easily.* If the stone were new, and also alone in the valley, no one would think more of it than of a plank used as a temporary bridge ; but the stone is very old, and lintel-bridges are ancient customs in the valley of Wycollar. If Nature once in a century allowed bridges to tell their tales, I should expect two of the Wycollar historians to trace their lineage through a great many ancestors until at last they came to a time when the first nomads hacked their way with flint axes through the undergrowth of Lancashire forests, and cursed in primitive words or sounds at the virile brambles whose thorns were sharper than pointed flints.

The second bridge of lintel-stones at Wycollar is a simple adaptation from one of Nature's bridges, the bridge of stepping-stones littered over the beds of rivers by earthquakes and floods. When the stepping-stones are long you turn them on end and use them as piers ; when they are short and squat you pile them up into piers ; then lintel- stones are put from pier to pier, and from pier to each bankside. Here is the A B C of primitive bridge-making with slabs, boulders, and fragments of rock. It needs very much less mother-wit than that which enabled primitive men to survive innumerable hardships, and to breed and rear those

* I have two photographs of it, both taken by my friend Mr. C. S. Sargisson, a Lancashire pontist. At one end the lintel rests on a rocky bank and is broken across by long use ; at the other end it rests on a slab projecting from the bank, just below a stile of unmortared flags set in a picturesque wall of loose stones. The footway is much worn ; and in frosty weather even a temperance reformer might slide from it with his reputation. ;

62 A BOOK OF BRIDGES

true artists who in Palaeolithic times, about 50,000 years ago,* turned a good many European caves into the first public art galleries, famous for their rock-paintings and for their sculpture and engravings. Thus the Altamira Cavern, near Santander, in Northern Spain, and the La Madeleine cave in the Dordogne (about eighty miles east of Bordeaux), are among the prehistoric museums, or art galleries, which have given us work very far in advance of the Wycollar

lintel-bridges ; so far, indeed, that trees and shrubs in the valley ought to blush with shame by keeping autumn tints in their leaves all the year round. This hint from Dame

Nature might awaken some little self-reproach in the Lan- cashire weavers and peasants whose heavy clogs clatter day after day over the lintel-stones, wearing them into troughs where rainwater collects pretty pictures from the sky. Not long ago a busy official mind in the neighbourhood was troubled by one of the bridges at Wycollar, named the Weavers' Bridge, a dull-witted primitivity made with three lintel-stones and two rough piers in the water. Though the busy official mind was troubled it did not suggest that the bridge should be put under glass and kept with as much care as the perfect skeleton of a mastodon would receive

nor did it wish to build a successor in the cheapest style of industrial metal-work. No ; what the official mind advertised as a fortunate inspiration was a foolish little act of commonplace vandalism. It set a mason to chisel out of existence the trough worn in the lintel-stones by generations

* I am quoting this approximate date from Sir Ray Lankester. THE STUDY OF BRIDGES AND ROADS 63

clog-wearers I of ! have two photographs, now historic, in which the trough can be seen distinctly; but the poor weavers have no such consolation. Their ancestors' work has to be done all over again, and they know that their

IN THE VALLEY OF WYCOLLAR, LANCASHIRE: THE WEAVERS' BRIDGE

great-grandchildren will find in the lintel-stones not a trough but a vague hollow scarcely deep enough to hold

a few raindrops. Mr. Sargisson wrote to tell me this

pathetic story of a crisis in antiquarianism. But it is fair

to add that the busy official mind was content with one

foolish act ; it spared the rude pillar on the left bank, 64 A BOOK OF BRIDGES

though this rough stone looks like a small menhir and completes the primeval bridge.

And now let us look at the survival of convention under

a form that is even more distressing. Is it true that in many times and lands human beings have been sacrificed not to bridges, but to the spirits of floods and storms which

have been feared as destroyers of bridges ? One good reference to this question will be found in Francis M. Crawford's "Ave Roma Immortalis." The most venerated bridge in ancient Rome was the Pons Sublicius, whose history dated from the time of Ancus Marcius, who reigned twenty-four years—B.C. 640-616. In much later times, long after the good fight that made Horatius Codes famous for ever, strange ceremonies and superstitions lingered around the Pons Sublicius. On the Ides of May, which were celebrated on the fifteenth of the month, Pontiffs and Vestals came in solemn state to the bridge, accompanied by men who carried thirty efiigies representing human bodies. The effigies were made of bulrushes, and one by one they were thrown into the Tiber, while the Vestals sang hymns or the priests chanted prayers. What did this rite signify ? A tradition popular in Rome taught children to believe that the effigies took the place of human beings, once sacrificed to the river in May. This tradition is attacked by Ovid, "but the industrious Baracconi quotes Sextus Pompeius Festus to prove that in very early times human victims were thrown into the Tiber for one reason or another, and that human beings were otherwise sacrificed until the year of the City 657, —

THE STUDY OF BRIDGES AND ROADS 65 when, Cnaeus Cornelius Lentulus and Publius Licinius Crassus being consuls, the Senate made a law that no man should be sacrificed thereafter."

It is possible, if not, indeed, probable, that the effigies were made at first in order to placate the common people who were indignant over the loss of a festival. We can

imagine what would be said to-day if Cup-finals were

stopped by Act of Parliament ; and the Romans, in their fool-fury over "sport" at second-hand, were always glad to appease their curiosity with shows of bloodshed. Further, in the folk-lore of later times bridges and rivers are connected with the primitive rite of killing women and men as

a sacrifice to evil spirits. This dread tradition is related

now in the Asiatic provinces of Turkey, as I learn from

Sir Mark Sykes, whose " Dar-Ul-Islam " is a book for pontists to read. It was at Zakho that Sir Mark heard

the following legend : " Many years ago workmen under their master were set

to build the bridge ; three times the bridge fell, and the

workmen said, ' The bridge needs a life.' And the master saw a beautiful girl, accompanied by a bitch and her puppies, and he said, 'We will give the first [life] that comes by.' But the dog and her little ones hung back, so the girl was built alive into the bridge, and only her

hand with a gold bracelet upon it was left outside. "At the foot of this bridge I found the local Agha, Yussuf Pasha, superintending the collection of the sheep- tax, in which as a large landowner he has an interest." 66 A BOOK OF BRIDGES

Try to visualise in all their details these pictures, passing from to-day's tax-gatherer, a Pasha Lloyd George, into the drama of a very terrible superstition. The workmen can be fitted with fairly good primitive characters, for they do not suggest the sacrifice of a life until the bridge has fallen thrice. As to their master, he is a fiend, since he acts upon their suggestion at once, unmoved by the girl's beauty and the frisking springtime that accompanies her. A little dead hand—and a gleaming bracelet —and the masons chanting at their work, as bridge-builders chant now in

Persia : so the drama ends, or so it would end if we could

not unite it with a similar legend known almost everywhere in Europe. Why in the Turkish story the workmen say, "The bridge needs a life," I do not know. Their superstition

goes away from the river and its evil spirits, and from those other demons, which in olden times made winds so variable. Are we then to suppose that men have defiled the charity of bridges with bad spirits other than those that live in wilted

conventions and in modern engineers? I prefer to believe

that a bridge that fell three times would muddle the super-

stition of any workman. In fact, there are many bridges which superstition—not modesty in men—has given to the Devil, and as a rule they have been connected with the same legend, or bogie tale. Mr. Baring-Gould takes a great interest in the bridges ascribed to the Devil, and writes about them as follows in his " Book of South Wales " :— ;

THE STUDY OF BRIDGES AND ROADS 67

" The Devil's Bridge is twelve miles from Aberystwyth ; it is over the Afon Mynach just before its junction with the

Rheidol* . . . The original bridge was constructed by the

PONT DU DIABLE, ST. GOTHARD PASS monks of Strata Florida, at what time is unknown, but legend says it was built by the Devil.

Old Megan Llandunach, of Pont-y-Mynach, Had lost her only cow Across the ravine the cow was seen,

But to get it she could not tell how.

* "The Mynach cataract consists of four leaps, making a total descent of 210 feet. The bridge has been thrown across a chasm 114 feet above the first fall and 324 feet above the bottom of the cataract." ; '

68 A BOOK OF BRIDGES

"In this dilemma the Evil One appeared to her cowled as a monk, and with a rosary at his belt, and offered to cast a bridge across the chasm if she would promise him the first living being that should pass over it when complete. To this she gladly consented. The bridge was thrown across the ravine, and the Evil One stood bowing and beckoning to the old woman to come over and try it. But she was too clever to do that. She had noticed his left leg as he was engaged on the construction, and saw that the knee was behind in place of in front, and for a foot he had a hoof.

In her pocket she fumbled, a crust out tumbled, She called her little black cur The crust over she threw, the dog after it flew,

! Says she, ' The dog's yours, crafty sir

" Precisely the same story is told of S. Cadoc's Cause-

way in Brittany ; of the bridge over the Maine at Frankfort, and of many and many another.

" How comes it that we have an almost identical tale in

so many parts of Europe ? The reason is that in all such structures a sacrifice was offered to the Spirits of Evil who haunted the place. When a storm came down on the sea,

Jonah had to be flung overboard to allay it. When, in the old English ballad, a ship remained stationary, though all sails were spread, and she could make no headway, the crew

' cast the black bullets,' and the lot falls to the captain's wife,

and she is thereupon thrown overboard. Vortigern sought to lay the foundations of his castle in the blood of an orphan boy. A dam broke in Holland in the seventeenth a;

THE STUDY OF BRIDGES AND ROADS 69

century ; the peasants could hardly be restrained from bury-

ing a living child under it, when reconstructed, to ensure

its stability.* "When the [Cistercian] monks of Strata Florida threw the daring arch over the chasm, they so far yielded to the popular superstition as to bury a dog beneath the base of the arch, or to fling one over the parapet."

There ! We have followed a superstition—a vile convention in ignorance and cowardice—from the Pons Sublicius in Ancient Rome to the Pont-y-Mynach in South Wales

and the best we can say of it is that in Pagan Rome it went from human victims to effigies of men and women, while in

Christian times it passed from human victims to dogs.t

Mr. Baring-Gould has told us that in bridges, and " in all such structures, a sacrifice was offered to the Spirits of Evil who haunted the place." Yet it was not in a structure— finished building—that Vortigern wished to offer his sacri- " fice ; he sought to lay the foundations of his castle in the blood of an orphan boy," so his aim was to placate the Spirits of Evil before his castle was built. As to his con-

ception of the spiritual agencies to be appeased, it would mingle his own passions with the fears bred by his primitive fanaticism. For, as Darwin says, " savages would naturally attribute to spirits the same passions, the same

* What does this phrasing mean ? I wonder. Is the living child to be reconstructed ? in order that its body when buried under the new dam may be strong enough as a foundation ?

t To-day, in some parts of China, a living pig is thrown into a river when a bridge is endangered by a flood. (See p. 248.) !

70 A BOOK OF BRIDGES

love of vengeance or simplest form of justice, and the same affections which they themselves felt." Now in the case of bridges we have to identify primi-

tive men with the terror inspired by storms and floods ; a

terror difificult for us to understand in our sheltered lives. Have you read Matthew Paris, who lived in the reign of

Henry HI ? If not, go to him and study the tempests that he described, and see how villages were desolated by winds and inundations. Amid these disasters the ignorant would

cling to ancient superstitions ; fear would be pagan out of

doors whatever faith might say in church ; and I have no

doubt at all that the many so-called Devil's Bridges were as supernatural to the mediaeval peasant as were witches. The Dutch of the Middle Ages were more advanced in domestic

civilization than our own ancestors ; and yet at heart they were cruel pagans, even as late as the seventeenth century, as Mr. Baring-Gould has shown. How very humble human nature ought to be Let us pass on, then, to a convention that does not reek

like a stricken field. One of the best historians in architecture, Viollet-le-Duc, found in the hills of Savoy a primeval

bridge whose structure had been changed very little, if at

all, since the days when its ancestors were described by

Caesar and used by the Gauls. It is a timber bridge, known in France as un empilage, a thing piled together

rudely, and not constructed with art. Indeed, it needs no

carpentry, so it is far behind the social genius of prehistoric lake-dwellers. To make a simple Gaulish bridge, —

THE STUDY OF BRIDGES AND ROADS 71 as to-day in Savoy, we must choose a deep-lying river with

rugged banks ; then with water-worn boulders we make on each bank a rough foundation about fifteen feet square, or more. Upon this we raise a criss-cross of tree trunks, taking care that the horizontal trees jut out farther and farther across the water, narrowing the gap to be bridged " by four or five pines. Each criss-cross must be " stiffened

or filled in with pebbles and bits of rock ; and across the unfinished road of pines thick boards are nailed firmly.

Viollet-le-Duc says :

"Cette construction primitive . . . rappelle singuli6re- ment ces ouvrages Gaulois dont parle Cesar, et qui se com- posaient de troncs d'arbres pos^§ a Tangle droit par rang^eS, entre lesquelles on bloquait des quartiers de roches. Ce proc6d6, qui n'est qu'un empilage, doit remonter a la plus

haute antiquity ; nous le signalons ici pour faire connattre comment certaines traditions se perp^tuent a travers les siecles, malgr^ les perfectionnements apportds par la civil- isation, et combien elles doivent toujours fixer I'attention de r arch Cologne." Does anyone suppose that Savoy would have been loyal

to a prehistoric bridge if all primitiveness had vanished

from her social life ?

Not that Savoy is the only place where criss-cross

bridges are still in vogue. Much finer specimens are to be found in Kashmir, thrown across the river Jhelum, the Hydaspes of Greek historians. At Srinagar, the capital city, founded in the sixth century a.d., there is a quite 72 A BOOK OF BRIDGES wonderful example, for it has many spans, and corbelled out from the footway is a quaint little street of frail shops, rickety cabins with gabled roofs, and so unequal in size that they are charmed with an amusing inequality. I have several photographs of this bridge, and in them I see always with a renewed pleasure its ancestry, its descent from the prehistoric lake-villages, those heralds of Venice and of Old London Bridge (p. 216). All the piers are made with deodar logs piled up in the criss-cross manner ; those that stretch across the river are cut in varying lengths, and each succeeding row is longer than the one beneath it, so the logs in a brace of piers project towards each other farther and farther over the water, till at last they form

an arched shape ; not an arch perfect in outline, of course, since the head of it is flattened by the long bearing beams of the roadway. Still, the arched shape is very noticeable. A pontist should study these rude arches with care, and connect them with similar arches in the Gaulish bridges of

Savoy, and also with the historic fact that the first arches built with voussoirs (i.e. arch-stones) were evolved from vaults roughly constructed with parallel courses of stone and layers of timber (p. 155). It is probable that the parallel layers of timber or rows of logs came before the parallel courses of stone, as the evolution of architecture passed from wood to stone. Forests much more than rocks and quarries have been an inspiration to primitive builders, as if the handling of wood has quickened in human nature •™v^"> ,:t^

;

THE STUDY OF BRIDGES AND ROADS 73 an arboreal instinct dating from the family trees in the descent of man.

However, another criss-cross bridge in Kashmir ought to be studied in photographs ; it is carried on six piers over the Jhelum at Baramula quite close to the the — Himalayas ; piers rise from boat-shaped platforms that meet the oncom- ing water as boats do, with their blunt stems looking brave as rearguards. The parapet is a simple latticework, and the abutments are masonry. Here we have a type of bridge perhaps quite similar to the one from which the Gauls got their rude methods, long after the craft of the lake-dwellers had left its sheltered moorings and adventured across wide rivers. Is there any concrete evidence to suggest that the bridge with criss-cross piers has gone through many phases of change, of growth or of decadence ? Yes, At Archangel, in North Russia, the criss-cross piers are more primitive instead of being arched they are upright and stiff; but as the bridge is nearly a quarter of a mile long, and as it is taken down every spring (before the ice breaks up noisily, and the Dwina thunders into a raging torrent), crude workmanship in a hurried routine is excusable. The main point is that a bridge akin to the Gaulish type and to the variation in Kashmir exists in North Russia. And another variation is met with at Bhutan, in India.

Brangwyn has drawn it, and we shall study it later in a page on gateway-towers (p. 272). In the highlands of Eastern Kurdistan, the borderland of Asiatic Turkey and 74 A BOOK OF BRIDGES

Persia, travellers find a bridge akin to the Bhutan variety. An excellent book on these highlands has been published,* and its authors, very generously, have written for me some valuable notes on the bridges. Before I quote them in full, let me ask you to remember that in Eastern Kurdistan timber is uncommon ; hence the criss-cross bridge has been evolved into another sort of primitive structure—a third cousin, several times removed. A Kurdistan bridge is " built as follows : A site is selected, if one can be found, where two immovable and flat-topped masses of rock face one another across the stream to be bridged : an abutment of unhewn stones is built on these, solid, until a height has been reached sufficient to be safe from any flood. " Then a bracket of four or more rows of poplar trunks is constructed on each abutment ; short stout trunks form the bottom row, and those of each succeeding one are naturally longer than the preceding. Unless the bridge is unusually wide in the footway four poplars are enough to form a row, and the butts of the trees, which are kept shore-wards, are weighted down with big stones as counter- weights to hold them in place. "The top of each row of trunks projects perhaps five feet beyond the preceding one, so that when a bracket of four rows is completed, it may project perhaps twenty feet over the stream. "When the corresponding bracket has been completed,

* " The Cradle of Mankind." By the Rev. W. A. Wigram, d.d., and Edgar T. A. Wigram. London, 1914. THE STUDY OF BRIDGES AND ROADS 75 two long poplar trunks are slung by withies from bracket end to bracket end, a footway of withy hurdles, resting on faggots, is laid down over all, and the bridge is complete.

The length of this centre span is of course limited by the

height of the poplars available. I should think fifty feet the extreme possible.

"If the width of the river makes it necessary, one or more piers of stone, — I have seen as many as three,—are erected in midstream, preferably on rock foundations. Each of these carries a bi-acket on each side, but this double

' bracket is usually made of whole trunks ' and these naturally need no counter-weighting.

" As a rule the footway is about four feet wide, and the whole structure is very elastic, so that, as it is guiltless of handrails, it requires a steady head in the passenger.

Further, the central span often acquires a pronounced ' sag,'

and not seldom an equally pronounced tilt to one side or other. Ancient rule says that the passenger ought not to look down in crossing such a place, lest the sight of water whirling below should unnerve him. In Kurdistan, however, look down he must, and make the best of the hurdles that form the footway; they abound in holes and other traps for the unwary, and a stumble may mean disaster. These bridges, then, though admirably planned (for they are true cantilevers), are not built in the most convenient manner. It is characteristically Oriental, this union of real fineness of design with great casualness in construction and in upkeep. The piers are invariably of stone, never of wood. Good 76 A BOOK OF BRIDGES timber is almost unknown in Kurdistan. The poplar grows well, but it is at best only a good pole. Stone, on the other hand, is embarrassingly abundant. " Dry-stone arches are thrown over smaller streams, but their builders, though acquainted with the principle of the vault, do not venture on a span of more than thirty * feet 1 "

How do you like the antiquity of conventions ? Does it not make you feel that the greatest part of mankind has

never Shown a particle of desire that its civil institutions

should be improved ? Note, too, that convention among

men is inferior to the instinct of animals, for animals invariably repeat themselves with a passionate interest, whereas we in our formulas grow more and more unfeeling and automatic. Even rabbits when they dig their burrows seem to

be guided by inspiration, as if routine work with them is an

appetite, like love and hunger ; so very different are they from the conservative peasants of Savoy, whose dull routine has delivered down through the centuries a primeval bridge which an hour's thought could have improved.

One day, let us hope, most men will realise that it is

woefully commonplace to be as other men ; then conventions will go out of vogue. Courts and clubs will invent new and good etiquettes every year; no game will be stereotyped; and laws will command that such and such things be altered

and improved by given dates. For example, if an Act of

Parliament decreed that during the next ten years all the

* Notes by the Rev. W, A. Wigram, d.d. THE STUDY OF BRIDGES AND ROADS 77 railway bridges in England must be made less uncomely and less at odds with the needs of military defence, I have no doubt that compulsion, the scout of civil progress, would discover among engineers more than enough invention. Railway bridges have been built in obedience to a brace of conventional arguments. It has been argued, first, that because traffic and trade are the main considerations, therefore art is not a matter to be considered ; next, that because boards of directors have to please their shareholders, therefore a most strenuous economy must be advertised in a very evident manner, even although its results blot fine landscapes with the shame of uninspired craftsmanship. Thirty-four years have passed since the late E. M. Barry, r.a., in a thoughtful book, asked the public to understand that modern engineering was not architecture at all,

but mere building ; and he chose as an example of horrible work the Britannia Bridge over the Menai Straits. " Here we have the adoption of the trabeated principle of large iron beams laid upon supports of masonry, which rise from the valley beneath, and tower up above the beams to a

height far exceeding that which is necessary for their

support. I well remember the animated discussions in scientific circles as to the form and design of these beams, which were ultimately decided upon as rectangular tubes. In the many discussions of the merits and defects of

circular, elliptical and square sections, I do not recollect that a word was said about architectural effect [or about military convenience and strategy]. Had anyone ventured 78 A BOOK OF BRIDGES to suggest that this, too, was an important matter, and that an unsightly structure would be an eyesore for all time, he would have been promptly told that the forms to be employed were an affair of science alone, and that utility pure and simple would dictate their arrangement. In the result a lovely valley was defaced. ..."

The same convention in mean tradecraft is shown in the tale about Tennyson and the jerry-builder. "Why do you cut down these trees?" the poet asked reprovingly. "Trees are beautiful things." "Ah!" answered the jerry- " builder, trees are luxuries ; what we need is utility." And what this utility has done for us may be seen in a thousand railway bridges as bad as those that disgrace even the Harrow Road, near by Paddington Station.

It is not my argument that every railway bridge in

England is underbred and crapulous ; here and there an engineer has made an effort to be architectural, but the usual level of taste is exceedingly vulgar, and not in railway bridges only. Even the Tower Bridge, London, a vast feat in engineering, is so conventional with a meretricious mediaevalism that it needs the screening dust and mist that veil the Thames. This is among the modern bridges that Brangwyn has drawn and painted, raising them into art as a record of current history. Nothing moves him more than the huge mechanisms that seize upon to-day's life and turn it into their obedient slave. Men dwindle ever more and more in scale as machines become fatal in their enormous bulk, like Super-Dreadnoughts and the " " Titanic ; not to THE STUDY OF BRIDGES AND ROADS 79 forget such vulnerable monsters as the bridges of New York, which airships sent forth by Mr. H. G. Wells have already attacked with prophetic success. Is man really doomed to be the tool of machines? Is this to be his final convention ? In one great picture by Brangwyn the High Level Bridge at Newcastle represents our time. Historically the

High Level Bridge has much interest ; it displaced the Britannia Bridge as an object of scientific veneration, and

from the first it has ranked high in the conventional ugliness that the British public has accepted from engineers. When the Britannia Bridge was proved to be a bad railway line (trains were the decisive critics), and when men of science after weighing their after-thoughts began to find fault with

the distribution of metal in the section of its tubes, then engineers said, "And now—now we must have a good railway bridge, completely scientific in all respects." It was to be built with two roadways, the one for common traffic passing under a railway, so that business folk might be comforted by the noise overhead, which would be as music to any believer in a pushful industrialism. Six arches of metal would be united to five piers and the abut-

ments ; their spans would have precisely the same width, i.e. 138 ft. 10 in., for minds long used to office hours and ledgers would enjoy a dead uniformity. Indeed, everybody

was pleased with these plans ; and in 1849, when Queen Victoria opened the High Level Bridge, artists alone were

unexcited with joy. All the rest - of the English world 8o A BOOK OF BRIDGES

imagined that science, at the cost of only ^^243,000, had achieved a metal masterpiece. New London Bridge had

cost six times as much (i.e. ;^i,458,3ii), and her materials were stones, not metals, so once more the north of England had scored heavily over the south. " Besides," remarked the engineers, "we have put into the superstructure 321 tons of wrought-iron, and into the arched ribs 4,728 tons of

cast-iron. Economy . . . Scientific economy. . . . And we have now in use a perfect example of the true bowstring arch in which no cross-bracing is needed." All this, when dis-

cussed at dinners, enriched the flavour of champagne ; and opinion became so "heady" that even the "Encyclopaedia Britannica" in its eighth edition received the High Level Bridge as an inspired work, and gave to its engineering as

much space as the thrifty Romans would have given to all their Spanish bridges and aqueducts.

At last, and all of a sudden, a reaction came ; enthusi-

asm not only caught a chill, it passed in a hurry from its tropical summer into a bad winter of discontent. Scientists went so far as to declare that the High Level Bridge was a youthful indiscretion, advertised publicly in a material which might endure for centuries ; and this change of opinion had a great effect on the "Encyclopaedia Britannica," whose

ninth edition gave only eighteen lines to its former favourite. Even the bowstring arch was praised no longer, "being essentially more expensive and heavier than a true girder." Such are the comedies invented by our new playwright. ola a ^ o i-i H o a 2 o H X

THE STUDY OF BRIDGES AND ROADS 8i the genius of civil engineers. Still, the High Level Bridge at Newcastle looks well on a misty day ; by moonlight it is more impressive than a Whistler nocturne; and in

Brangwyn's art it represents our industrial age with a vigour that is manly and impressive. For the rest, from the pictures in this book you will be able to choose for yourself many a convention in the craft of bridge-building. Study, for example, the arches and their shapes, noting those which have a character of their own. These mark a new departure, and are famous. Thus the bridge at Avignon is admired by technicians because its architect, the great Saint Bdn^zet, gave to the arches what Professor Fleeming Jenkin has described as " an elliptical outline with the radius of curvature smaller at the crown than at the haunch, a form which accords more truly

with the linear equilibrated arch than the modern flat ellipse with the largest radius at the crown." Good B^n^zet Seven hundred and thirty years have gone by since he turned from the Roman tradition of semicircular arches, and designed an excellent arch of his own, a beautiful thing, with a look of triumph in its quiet dignity. Many writers think that L'arc de Saint Bdn^zet is original also in con-

struction, its vault being composed of four separate bands put side by side in stones of about equal bulk. Sometimes this method of building is condemned as weak, though four of B^n^zet's arches have outlived seven centuries of war and what engineer would feel disgraced if he were baffled by the terrific floods to which the Rhdne is subject ? 82 A BOOK OF BRIDGES

Moreover, Bdndzet was not an originator in this matter ; he borrowed from the Romans. In his time there was a bridge that carried the Via Domitiana over the Vidourle at

Pont Ambroise ; the vaults of its five arches were built in precisely the same manner, in four parallel arcs or bands that

touched each other ; and the bridge was notable for other

reasons, and thus attractive to all bridge-builders. In the first

place, a Bull of Pope Adrian IV, dated 1 156, now treasured at Ntmes in the Church of N6tre Dame, has proved that in the twelfth century a chapel was built either on or from the

middle of the bridge ; it was dedicated to St. Mary, and it belonged to the chapter of Ntmes Cathedral. A Roman bridge sanctified by a Christian chapel recalls to one's mind the devotion of the Flavian family that placed the mono- gram of Christ among the ensigns of ancient Rome. Unless the chapel stood out on corbels from the side of the bridge,

it must have been a tiny place of prayer, for the bridge was only three metres wide, while the Via Domitiana had an average width of six metres. Further, the roadway across

the bridge was peculiar ; it followed in gentle curves the contour of the arches, instead of being either flat (as in most Roman bridges) or with a slight incline at the abutment ends (as in the bridge of Augustus at Rimini).* We cannot

* To-day only a ruin can be studied at Pont Ambroise : two isolated arches and

the lower part of an abutment ; but recent French writers draw attention to the technical structure of the arches. In the under surface of each vault four arcs or bands are placed side by side. See Vol. Ill, Part II, p. 294, " Geographic generale du Departement de I'Herault." Published by La Societe Languedocienne, Mont- pellier, 1905. THE STUDY OF BRIDGES AND ROADS 83 suppose that this bridge, so noteworthy in several ways, was unknown to B6ndzet, head of the Pontist Friars. Any- how, the immense Pont du Gard, near Nimes, a Roman masterpiece, must have been to him the arches known ; and of its second tier have in the belly of each vault three parallel bands of equal-sized stones. If this method of construction be unsound, how are we to explain the heroic stability of the Pont du Gard, the finest of all the Roman aqueducts ?

Myself, I do not believe that B6n6zet was inexpert as a

borrower. We shall meet him again (p. 236), but let us

note here that his work is rhythmical and charming ; so it does not belong to the underbred heaviness that bridge- builders often copied from the art of mediaeval fortification.

This art was an unthrifty engineer ; it employed far and and away too much blind masonry. Castle walls were ten feet thick, and brave soldiers at home feared the light of day, merely to show respect for arrows and machine-worked

catapults. They were not discreet ; they made caution too timid and too uncomfortable. Did gallant married knights

forget to sleep in their suits of mail ? Was a honeymoon in armour a trifle more tiresome than were twelfth-century

castles with their arrow slits for windows ? For many a year home life was an ill-smelling twilight, particularly to

persons of rank ; and from this we may infer that the custom of war during the Middle Ages went hand-in-hand with a superstitious dread of death. B^n^zet needed courage as well as genius when he slighted in a graceful manner the ponderous conventions of safety that ruled in his day over 84 A BOOK OF BRIDGES

castles (i 1 77-1 185). It was his arch that saved the vigour of his design from being dull and clumsy. Some other arches in French bridges have provoked paper wars. This is true of those in the bridges at Albi and Espalion, chosen by Brangwyn partly because of their controversial interest, and partly because they illustrate a mood of handicraft which may be called the uncouth picturesque. AN OLD TOWN BRIDGE IN PERUGIA, ITALY, TO ILLUSTRATE A POINTED ARCH WHICH HAS IN ITS CURVE A SORT OF LINGERING SENTIMENT FOR THE ROUND ARCH OF THE ROMANS

IV CONTROVERSIES STUDENTS are tested and judged by their attitude to controversies. Common sense should keep them

from partisanship ; and when they feel tempted to look on as mere spectators, they should remember that crowds at boxing matches are very apt to form wrong

opinions. It is better by far to laugh at both sides by caricaturing the weak points of a discussion. In a few

days a student will learn which side is the more difficult to 8s :

86 A BOOK OF BRIDGES caricature, and this knowledge will help him to sift all rubbish from a controversy and to form a judgment of his own on facts and on inferences. As Sir Thomas Browne said, a man should be something that all men are not, and individual in somewhat beside his person and his name. The bridges at Albi and Espalion have caused some men to break old friendships over a simple question, namely

" When were pointed arches used for the first time in French bridges ? At what date were they brought from the East?" As the pointed arch was copied by Europeans, not invented by them, the precise date of the mimicry ought not to excite a pontist ; it is a thing for antiquaries to be flurried about. If the question ran in another form: "Was the pointed arch in French bridges an independent discovery?" then a battle and some exploded reputations would be worth while. But no such hypothesis has been put forward by either side in a warm dispute. One party declares that as early as the time of Charlemagne, towards the end of the eighth century, or the beginning of the ninth (768-814), a French builder seems to have played the part of the sedulous ape to Eastern architecture, cribbing the pointed arch, and using it without much skill in the bridge of Espalion, whose construction (as documents prove incontestably) was ordered by Charlemagne himself. In this bald statement there is no challenge, no provocation; it is nothing more than a conjecture supported by a documented fact. If Charlemagne had been a weak ruler, like Louis the

Indolent, it would be fair to suppose that his commands THE STUDY OF BRIDGES AND ROADS 87

were neglected more often than obeyed ; then we could not accept his character as a fact of greater value in a controversy than a command of his mentioned in authentic documents. Let us say that the Black Prince or his father

ordered a bridge to be built at a given place ; we have documents to prove this, and at the place named in the documents a very old bridge is extant. Should we not read these documents by the light of the reputation won by

the Black Prince or by his father ? Myself, I should say at once, " His orders were obeyed." And so, too, in the case

of Charlemagne. I accept his character as a guarantee that

he was obeyed at Espalion ; and in this I am supported by Charlemagne's general attitude to roads and bridges. It was he who made many an effort to keep the highways in repair, trying to rescue them from the great disorder into which their administration had been thrown by the decline and fall of the Romans. He created the right to exact tolls, and sanctioned on the roads the use of statute labour and of fatigue duty done by soldiers. During his reign of forty- six years he restored much Roman work and set in movement a system that did not overtax the poor finances of his

Empire ; but after his death the Empire was divided and continual wars put an end to civil advancement. As Charlemagne needed a bridge at Espalion we may believe that a bridge was built there between the years 768

and 814. Does the bridge still exist, or was it rebuilt in

the twelfth century, or later? There is no evidence on

these points the controversy. Those who think it ; hence 88 A BOOK OF BRIDGES

possible, if not probable, that the bridge as it is now, apart from periodical repairs, belongs to Charlemagne's reign,

draw arguments from the uncouth workmanship ; and even

their opponents admit that the bridge is " une oeuvre

barbare n'offrant absolument aucun int^r^t : a barbaric

work without any interest at all " * (as architecture). Why, then, should any Frenchman wish to assign this barbaric

bridge to a much later century than the eighth ? Ah ! Here we touch once again the influence of conventions. A belief current among antiquaries has connected the pointed arch with the first Crusade, and so with the last decade of the eleventh century (1095) and the first years of the twelfth. Godfrey of Bouillon, on July 15, 1099, was made King of Jerusalem, and before this date many Crusaders had returned home. M. Degrand says: "At this time, about

the year 1 100, Crusaders returned to France after their stay in the East, notably at Antioch, where monuments of

Persian origin must have been numerous ; and without doubt they brought home with them sufficient knowledge to introduce the pointed vault into the national architecture.

Thus it is easy to understand why the twelfth century has been chosen as the date for the earliest work done in France with the pointed style. We conjecture, then, that the bridges at Espalion and Albi, in their present state, have not the antiquity which supposition has given to

* See a very helpful book, " Fonts en Magonnerie," by E. Degrand, Inspecteur. General des Fonts et Chaussdes, and Jean Rdsal, Ingenieur des Fonts et Chaussees- Two vols., illustrated; Beranger, Paris; price 40 francs.

THE STUDY OF BRIDGES AND ROADS 89

dil them ; and that they must have been rebuilt {Us out itre reconstruits) after the periods from which their first construction dates." This argument has a tongue and no legs. Even Nature in the Pont d'Arc at Ardeche had given a pointed arch to * France ; and how can we dare to suppose that no traveller from the East in the time of Charlemagne could have brought with him to Espalion any knowledge of pointed arches? Was this knowledge guarded so carefully that nothing less than a Crusade could bring it to France? Intelligent soldiers would certainly note the details of Eastern architecture, and when they returned home their talk and their tales would be listened to with eagerness by French craftsmen. More than this we have no right to believe. It is mere hollow claptrap to argue that no French architect or builder could have received earlier news of the pointed arches. But claptrap—is it not the drum of controversy? It makes a great noise, and gives men heart to fight for poor beliefs. So irrational has this controversy become that even M. Degrand, a most thoughtful pontist as a rule, includes the bridge at Albi in his defective argument, though it cannot be older than the year 1035, because at this date its construction was arranged at a great public meeting held by the Seigneur of Albi and the clergy. Not even then was it possible for a Frenchman to know that pointed arches were common in the East ! M. Degrand accepts the

* See note on p. 6. 90 A BOOK OF BRIDGES date 1035, and thinks it probable that the building was " " " " begun then or a few years later ; but," he adds, we

1 in have no proof that the bridge existed before 1 78, which year, according to a contemporary document, a body of troops used it to cross the Tarn." If M. Degrand were able

1 then to prove that Albi Bridge was new in the year 1 78, we should forget his conventional belief in the first Crusade; a fact would be very welcome after his parade of idle suppositions. Further, the meeting of 1035 must guide us until we know that its decision was not carried into action. It is a " policy of evasion to argue as follows : In the Middle Ages building projects were often delayed, as in the case of the * noble brick bridge at Montauban ; so we cannot attach any importance to the meeting of 1035 ^^ Albi. Though the desire to have a bridge was approved then by the Seigneur, by the clergy and by the people, yet a hundred and one things may have intervened between the project and its realisation. In 11 78 a bridge at Albi was strong enough to be used without risk by troops, but why connect it with the meeting of 1035 ? To do so would be rash indeed, since our aim is to add a pointed arch to the cross worn by the Crusaders."

So we turn to the evidence of workmanship ; and here again we can shoot at M. Degrand with his own bullets. To show that Albi Bridge is a clumsy structure without art is it of the 1 to prove unworthy year 1 78, when the Pontist

* See the brilliant sketch by Frank Brangwyn, and the story of the bridge on p. 254. —:

THE STUDY OF BRIDGES AND ROADS 91

Friars were active in France, and when at Avignon the genius of Saint B6n6zet was planning a wonderful achievement. The more just fault we can find with Albi Bridge as

a piece of building, the more fit we make it for the year 1035. Yet M. Degrand, passing from wayward controversy into art-criticism, gives himself away in an excess of fault- finding. He forgets that the bridge, a bad model as architecture, is uncommonly picturesque, and he writes as follows " There are seven pointed arches, and their spans vary

without order or regulation—from 9 m. 75 c. to 16 m. ; the piers in bulk are variable also, some of them being 6 m. 50 c.

thick, that is to say, two-thirds of the adjacent voids ; they are badly aligned and the spandrils belong almost all to different planes. The breakwaters jut out too far, and meet

the current with angles of even less than forty-five degrees ; while the buttresses behind, on the down-stream side, are

rectangular and almost without projection. Last of all,

there is no ornament to dress the nude spandrils and to set them apart from the parapets. Ces^ la, en fait, une oeuvre ." barbare. . . Let us conjecture, then, that this barbaric bridge at Albi, with its seven pointed arches, may belong, not to the time of Saint Bdn^zet, but to the year 1035, or thereabouts.

Nearly a century ago, in 1822, it was considerably enlarged, but the arches were not rebuilt. The bridge must have been restored many times, but there is no proof that it was reconstructed in the thirteenth century or in the twelfth.

Besides, sportsmen in a controversy should be fair. Yet a 92 A BOOK OF BRIDGES good many books of reference say: "The Pont du Tarn at Albi, whose first construction goes back to the year 1035 or 1040, is thirteenth-century work"—a calumny on a very beautiful period in the evolution of Gothic architecture. We should have far too much admiration for the Valentr6 Bridge at Cahors to give the Pont du Tarn to the thirteenth century ; and several other bridges in France do ample justice to the successors of Saint B^ndzet. For example, there is the Pont St. Esprit, a masterpiece of the Pontist

Friars, and a work so vast in length that Brangwyn is never tired of recalling his first impressions of its magnitude.* If, again, we wish to study work that comes to us from the twelfth century, then we turn to the famous bridges at B^ziers and Carcassonne.

As to the bridge at Espalion, it has four unequal arches, and three of them are pointed, more or less. Their form is experimental, and seems to mark a first experiment in pointed Gothic. One arch, indeed, when looked at from underneath, might be an ill-planned Roman arch, so poor is " its ogival " or pointed shape ; but yet the bridge, as the Brangwyn sketch bears witness, shows how an effort was made to free craftsmen from the convention of semicircular vaults. If we connect it with the age of Charlemagne we may argue thus: "Perhaps the masons were among those who at times restored a, neglected Roman bridge; and perhaps the bridgemaster had gained some knowledge of Eastern arches, either at first-hand or from travellers or * See the picture on p. 293. / o

THE STUDY OF BRIDGES AND ROADS 93 from drawings. East and West were united then as they were in much earlier times, so that information from each must have been conveyed to the other." On the other hand, if we guess that the first bridge at Espalion was rebuilt in the twelfth century or in the thirteenth, then we must say also that the town of Espalion was too lazy even to seek advice from the Pontist Friars. Larousse has set forth the

position very well : "The most ancient of the extant bridges, constructed in mediaeval France, appears to be the one at

Espalion (a.d. 780) ; its date is contested because we find it

associated with the pointed arch ; but this arch already had been used for two centuries in the East."* So we may conclude, in a conjecture perhaps strong enough to be called a hypothesis, that the pointed style in architecture may have been brought to France on three

occasions : in the reign of Charlemagne, then in the first

half of the eleventh century, and then after the first Crusade.

There is no need to set much store by the second presumed inspiration, since the idea for Albi Bridge may have been taken from the Pont du Tarn at Espalion. England as well as France has a controversy over

arches ; and I mention the fact because of Brangwyn's masterly pen-drawing of the Monnow Bridge at Monmouth —a fortified work of the Middle Ages. In this bridge the arches are ribbed, like those in the bridges at Kirkby Lons- dale, and Warkworth, and Rotherham, at Baslow and

* Much more : we shall see (pp. 156,160) that a pointed vault was built in ancient Egypt. The Babylonians also built pointed arches and vaults. ;

94 A BOOK OF BRIDGES

Bakewell, in Eamont Bridge at Penrith, at Ross in Here- fordshire (Elizabethan), and elsewhere. When was the ribbed arch first used in bridges ? The use of ribbed vaulting in English churches dates

from the twelfth century ; it came to England from France.

Yet Scotland, the historic friend of France, used it very rarely in bridges perhaps only once, in the famous Old ; Bridge of Dee near Aberdeen, which dates from the beginning of the sixteenth century. Mr. G. M. Eraser, a Scotch pontist, tells me that he has looked in vain throughout Scotland for another example. Old Stirling Bridge, and the Brig o' Doon, and the Auld Brig o' Ayr, and Devor- gilla's Bridge at Dumfries, all finely historic and various, have plain arches. On the other hand, ribbed arches are fairly common in North English bridges. One of the best examples architecturally is the graceful single arch that Sir Walter Scott loved in Twizel Bridge, that enabled Lord Surrey to outflank the Scotch before the battle of Flodden Field.* Why the frugal Scotch were unattracted by a new and thrifty way of building I cannot explain, unless by supposing that they loved convention even more than a hard economy. Viollet-le-Duc estimates that in arcs-doubleaux, or ribbed arches, builders use a third less of tooled and clavated masonry ; hence a great saving not of cost only, but of dead weight also.

* Twizel Bridge, over the Till, has a very beautiful arch which is slightly pointed it has a span of 90 ft. 7 ins., and a distance of 46 ft. separates the parapet from water- level. Tradition says that a lady of the Selby family built this bridge, one of the most famous in England. ;

THE STUDY OF BRIDGES AND ROADS 95

And there were other economies. An arc-doubleau is the simplest form of ribbed vaulting : at given intervals in the building of a vault a concentric arch is supposited, or the vault itself at intervals is made much thicker than at others. In Poitou, where ribbed bridges were studied by Viollet-le-Duc, the intervals between the ribs are filled

in with flagging under the roadway ; and with this material —or with ashlar—the spandrils above the ribs are packed. When flagstones are used, and rain-water filters down from

the roadway, no harm is done ; the wet trickles away through the joints of the flagstones, without causing the haunches of

an arch to throw out saltpetre : a mishap that occurs often when arches are unribbed. I am writing here with the mind of Viollet-le-Duc, who makes two other valuable

statements : first, that ribbed bridges are notable in Poitou next, that they seem to belong to the beginning of the thirteenth century, or perhaps even to the end of the twelfth.

Now it was in 12 14 that King John invaded Poitou

without success ; fifteen years later Henry HI misconducted

an expedition to the same province ; and again in 1 242 he landed in Poitou to be thrashed at Taillebourg. His aim, like that of John, was to win back the Empire of Henry II. May we then suppose that ribbed bridges came to us from

Poitou ? Certainly the mind of England during the first half of the thirteenth century was drawn towards the sea- ward provinces of France.

Still, it was the Cistercians of the twelfth century who 96 A BOOK OF BRIDGES

introduced ribbed vaulting into English churches,* and

why not into bridges as a development therefrom ? At a time when bridges were united to the Church in many ways, new methods in sacred architecture would be passed on to bridge-building. Not only were bridges protected by the

Church (p. 40), many were built by the lay clergy and by the

monastic orders ; and when a bridge had neither a chapel

nor a little place for prayer, it was sanctified by a shrine, or —and this was usual—by a cross or crucifix raised up from the parapet above the middle arch. It marked the centre

of the bridge, and I dare say peasants believed that it prevented evil spirits from passing above running water.

Altogether, it is very probable that the first ribbed bridges were built in the twelfth century, though I have no quite conclusive evidence to offer from extant examples. The six pointed arches in New Bridge on Thames, near Kingston, are very well ribbed, but they are Early English,

not Norman ; they belong to the early part of the thirteenth century. At Fountains Abbey, Yorkshire, are two small

bridges, one Norman, the other Early English ; both were built by Cistercian monks, yet neither has ribbed arches, so

that I supply you with a fact that runs counter to my hypothesis. At Dui-ham there are two bridges reputed to be of Norman origin, and one of them has two ribbed arches with a span of ninety feet. It is the Framwellgate Bridge at the north end of the city. According to the eleventh

* Read the delightful monograph on Kirkstall Abbey by Sir W. H. St. John Hope and Mr. Bilson of Hull. u:

THE STUDY OF BRIDGES AND ROADS 97 edition of the " Encyclopaedia Britannica," Framwellgate Bridge was " built in the thirteenth century and rebuilt in the fifteenth," but no authorities are given, and counter evidence may be accepted as more probable. For example, William Hutchinson * says without hesitation, giving references, that Framwellgate Bridge was built by Bishop Flam- bard who died in 11 28, after holding the See of Durham for 29 years 3 months and 7 days. Flambard "fortified the castle with a moat, and strengthened the banks of the river, over which he built an arched bridge of stone, at the foot of the castle, now called Framwellgate Bridge." In the fifteenth century the bridge was restored by the famous Bishop Fox, who began his reign at Durham in 1494, and died in 1502. There is no evidence to show that the restoration was a rebuilding, and the character of the arches does not belong to the time of Bishop Fox. Even Parker, in his "Glossary of Architecture," 1850, is not surprised that the Framwellgate Bridge should be given to the Norman period, for he mentions this attribution and describes the ribbed arches as perfect. The parapet is scorned as " modern." For many years— I know not how long— large gateway-tower stood at one end of this bridge, but in

1760 it was taken down. One of the most famous Norman bridges in Old England was the one that crossed the Lea at Stratford-at- Bow. It was founded and endowed by Queen Mathilda, wife of Henry I. In 1831, eight years before its demolition,

* " The History and Antiquities of Durham." Newcastle, MDCCLXXXV. —

98 A BOOK OF BRIDGES a print was issued of Bow Bridge, and ribs can be seen under two of the three arches. The central arch is represented in

a direct front view, so the vaulting cannot be studied ; but

Lewis, who in 183 1 published his "Topographical Dictionary of England," found ribs in the three arches. So a very important question arises here : Was Bow Bridge ever rebuilt ? shall M. J. J. Jusserand answer this question ; he has read all the evidence, he makes no reference to ribbed arches, he is unbiassed, and his pictures are lively : " Whether Queen Mathilda (twelfth century) got wetted or not, as is supposed, on passing the ford of the river at Stratford-atte-Bow—that same village where afterwards the French was spoken which amused Chaucer—it is certain that she thought she did a meritorious work in constructing two bridges there. Several times repaired. Bow Bridge was still standing in 1839. The Queen endowed her foundation, granting land and a water-mill to the Abbess of Barking with a perpetual charge thereon for the maintenance of the bridge and the neighbouring roadway. When the Queen died, an abbey for men was founded at the same Stratford close to the bridges, and the Abbess hastened to transfer to the new monastery the property in the mill and the charge of the reparations. The Abbot did them at first, then he wearied of it, and ended by delegating the looking after them to one Godfrey Pratt. He had built this man a house on the causeway beside the bridge, and made him a yearly grant. For a long time Pratt carried out the contract,

'getting assistance,' says an inquiry of Edward I (1272- THE STUDY OF BRIDGES AND ROADS 99

1307), 'from some passers-by, but without often having recourse to their aid.' Also he received the charity of travellers, and his affairs prospered. They prospered so well that the

Abbot thought he might withdraw the pension ; Pratt indemnified himself in the best way he could. He set up iron bars across the bridge and made all pay who passed over,* except the rich, for he made prudent exception ' for the nobility ; he feared them and let them pass without molesting them.' The dispute terminated only in the time of Edward H, when the Abbot recognised his fault, took back the charge of the bridge, and put down the iron

bars, the toll, and Godfrey Pratt himself. "This bridge, over which no doubt Chaucer himself passed, was of stone, the arches were narrow and the piers thick strong buttresses supported them and broke ; angular

the force of the current ; these formed at the upper part a triangle or siding which served as a refuge for foot- passengers, for the roadway was so narrow that a carriage

sufficed to fill the way. When it was pulled down in 1839,

it was found that the method of construction had been very simple. To ground the piers in the bed of the river the

masons had simply thrown down stones and mortar till the level of the water had been reached. It was remarked also that the ill-will of Pratt or the Abbot or of their successors must have rendered the bridge almost as dangerous at certain moments as the primitive ford had been. The

* It is said that he charged eightpence for the passage of a dead Jew ! A large sum in those days. A Jewish cemetery was just beyond the bridge. —W. S. 8 —

loo A BOOK OF BRIDGES wheels of vehicles had hollowed such deep ruts in the stone and the horses' shoes had so worn the pavement that an arch had been at one time pierced through."* This perforated arch proves pretty conclusively that Bow

Bridge was never rebuilt ; but I look upon doubt as an excellent thing in one's attitude to matters of this kind, partly because fresh evidence may be discovered, and partly because facts are woefully elusive even when they are tackled by judges, and barristers, and juries.

There is one more controversy to be considered : it centres around the famous bridges on Dartmoor, and I will try to put all the main points both clearly and fairly. In this dispute architects contend against antiquaries, and their arguments hold the field. Let me sum them up : The "clapper" bridges over Dartmoor rivers are not difficult to study ; their construction resembles that of cromlechs and Stonehenges. Their piers were evolved from menhirs, and their table slabs from the mass of rock forming the horizontal member of a cromlech. Nor is it difficult to suggest the evolution through which the clapper bridges have passed, for on Dartmoor itself the evolution is plainly suggested by the rude bridge at Okery and by the single slab at Walla Brook. Any primitive farmer of the Bronze Age had sense enough not merely to put a ledge of granite across the Walla Brook, but to span wider rivers by using menhirs to support large blocks of

* " English Wayfaring Life in the Middle Ages," pp. 45 and 47. See also " Archseologia," Vols. XXVII, p. 77 ; XXIX, p. 380. Also the histories of Essex. THE STUDY OF BRIDGES AND ROADS loi granite. Timber would not be used, since trees were very scarce on Dartmoor, while granite was so abundant that it must have been very troublesome to farmers.

Now the pastoral life of the Bronze Age was very active in the Dartmoor settlements ; all antiquaries make much ado over this fact, yet they fail to see that the circulation

of this farm life, the movement here and there of flocks and herds, required bridges, for the rivers then were not less wayward than they are now. Without bridges the farms would have stagnated. And another thing also needed the

help of bridges : many domestic fires burnt a great deal of peat and wood, and wood had to be imported from neighbouring districts, probably in exchange for live stock. So,

to visualise the farm life is to make it dependent on a cease- less movement to and fro over very freakish rivers, which after rains and thaws were exceedingly turbulent and perilous. Deep gorges have been worn in the rocks through which

the rivers flow ; this alone is enough to proye that such wild rivers could not be forded by the tiny sheep and the small cattle of the Bronze Age. Even in mediaeval times, as Thorold Rogers has proved, sheep were about as big as

Mary's little lamb ; they were bred because their wool was the wealth—the Golden Fleece—that made England pros-

perous ; and yet their cultivation failed to add to their national value by increasing their size. Sheep of the Bronze

Age were probably smaller still ; and how were they to cross the Dartmoor rivers unless bridges were built? Could sheep in those days swim like ducks, or did they float as I02 A BOOK OF BRIDGES naturally as logs ? And since bridges must have been made here and there in order to keep the farming life from ruin, are we to suppose that the abundant granite blocks would not be used for piers and table stones ? Are we to forget the instinctive delight in rude stonework shown everywhere by the dusky, short-statured race which for convenience we call Iberian? The research of antiquaries may be good or bad. What has it done for the life of these clapper bridges ? Has it proved that the present ones are probably younger than the Middle Ages, but that they had many predecessors going back to pre- Roman times? On the other hand, have antiquaries proved that in the Middle Ages a primitive phase of building was revived in Dartmoor, partly because it was good enough for the traffic, partly because it was inexpensive? The absence of lime on Dartmoor would influence the mediaeval settlers and govern their building work. But in this discussion it matters not whether the present bridges be old or young; in either case they represent primeval methods. Between the Bronze Period and the Middle Ages all the earliest slab bridges may have disappeared ; if so, then settlers on Dartmoor brought with them knowledge enough of cromlechs to recall the Iberian stonecraft, just as in modern times architects have revived phases of Gothic and phases of Classic. Every possibility is entertaining, but why is it that antiquaries in their remarks on the clapper bridges try to be elusive as well as dogmatic ? For example, Mr. William Crossing is of opinion . ;

THE STUDY OF BRIDGES AND ROADS 103 that the larger clapper bridges have had their age over- estimated probably because their rough and massive appear-

ance makes them very striking. Why "probably" ? He adds that they are mostly in the line of pack-horse tracks, and were probably built by farm settlers. "Probably" again!

Yet he gives no evidence. Even Mr. Baring-Gould is equally dogmatic in devious assertions that have no value to any architect. Like Mr. Crossing, he attributes the " clappers " to the period of pack-horses, and sees nothing in them to indicate a great antiquity. What next? Is primitive stonework insufficiently antique whatever its age may

be? And who is to estimate the age of rude granite

blocks ?

I have summed up with fairness the views of architects, and they ought to hold the field in the judgment of all pontists. The antiquarian talk about pack-horse tracks has no cogency, for the prehistoric tracks over Dartmoor are the first pathways along which the controversy must ramble. A pontist, then, when visiting Dartmoor, has to do four things.

1 To visualise the farm life of the Bronze Age

2. To reconnect it with the rivers and with the necessary trade in wood for household fires and for tool handles;

3. Then he will realise that bridges were essential, and that they would be made with the granite blocks which Nature had provided. —

I04 A BOOK OF BRIDGES

4. Then, too, he will see that the larger clapper bridges are merely flat cromlechs built over water, and

that it matters not when the present ones were put up, since their main interest is their descent from those rude monuments of stone in which the Iberian people commemorated their cult of ancestors, their reverence for the sacred dead.

Near Postbridge, over the East Dart, there is a very bold clapper with three heavy table slabs, each of which is about 15 ft. long and 6 ft. wide. Two piers rise out of the water ; each is a pile of granite menhirs that lie flat in the river with their ends looking up-stream and downstream. The abutments also are layers of granite, and in one abutment the stones are long enough to support on land a very large cromlech. Samuel Smiles believed that this bridge had " withstood the fury of the Dart for full twenty centuries," but there was no need to challenge antiquaries by making a rash statement. For the rest, we must bracket these Dartmoor structures with two other kinds of slab- bridges—those in the valley of Wycollar (p. 60), and those in Spain, at Fuentes de Onoro. My friend Mr. Edgar Wigram writes to me as follows about the Spanish variety :

" I include this very rough sketch because it does give

' some idea of one of the Clapper ' slab-bridges at Fuentes de Onoro. The bigger stone would be about 8 ft. long. As to the more important slab-bridge over the Dos Casas rivulet, it stands in a glen where large slabs lie handy. I U 2;

P O w X H

THE STUDY OF BRIDGES AND ROADS 105 can speak of it from recollection only, but think it has four spans, ft. ins. about 3 6 high, or perhaps 4 ft. ; the lintel- stones perhaps 7 ft. or 8 ft. long, centre to centre of piers, and the piers of single stones planted in the river bed, with the longer axes up- and down-stream. A causeway led up to the bridge at each end. Even at the time the solidity of the structure aroused in me a suspicion that it might be very old. On the other hand, it may be a recent work of convenience, not of necessity, for the stream in summer is often dry, and in winter it would not be unfordable

(except for children) till it had submerged the bridge." Still, a primitive piece of work, whether done yesterday or 500,000 years ago, comes from a dark mind and a hand without skill ; and the younger it is the more tragic is the meaning of it in sociology. Europeans of the twentieth century a.d. ought to be as far removed from rough slab- bridges as they are from ancestor-worship. Education and personal pride should make them ashamed to use anything that does not represent in its own way the very best that to-day's genius can achieve. For a survival of primitive conventions in a civilized country is a proof that in certain districts the people have feeble minds incapable of pro- longed attention, and therefore glad to find in mimicry a refuge from the pain of thinking. To me, then, primitive bridges are always sinister things ; even when they belong to savages they degrade mankind by showing how mother- wit in men often ceases to be fertile. Between a low degree of intelligence and a fondness for unchanging custom there io6 A BOOK OF BRIDGES is at least some relation, for "persons who are slightly imbecile tend to act in everything by routine or habit ; and * they are rendered much happier if this is encouraged." In the next chapter we shall try to follow from the earliest times the slow history of those gifts of the spirit whose growth very often has been arrested ; and we shall see once more that weak minds have employed imitation as their scout and custom and convention as their fortified places.

* See Darwin's " Descent of Man," Part I, chapter iii. AT ZUTPHEN IN HOLLAND

CHAPTER THE SECOND MAN AS THE MIMIC OF NATURE

PRELIMINARY CONSIDERATIONS

have taken a glance at the bridges made by WENature (pp. 3-4), and now we have to consider their influence on the genesis and development of handicraft. This difficult study has been neglected by

men of science ; not even Darwin said a word about natural bridges, though they were models to be copied by the

sedulous ape in primitive men ; and so we must try to be as thorough as possible, within the limits set by a brief chapter.

Where and how is a beginning to be made ? The useful

and necessary thing is to visualise the fact that varied hints on bridge-building accompanied the descent of man, so the

influence of their utility was active through all the linked growth in that organic chain by which the earliest men and their nearest allies were united. Sooner or later the mere use of natural bridges would generate in some minds a

desire to copy them ; and although we are quite ignorant as to when this desire came for the first time out of the dark- ness, yet we may suppose, without any great extravagance, that it belonged to the same period of handicraft as the earliest manufactured tools and weapons, which were a development from stone clubs and spears fashioned into 109 no A BOOK OF BRIDGES

shape by earthquakes and volcanoes, the first armourers of the Stone Age. As soon as a tribe, guided by a savage of genius, began to copy three or four object-lessons in Nature's perennial school for mimics, the imitation of several others would be suggested by the same trend of

thought, sooner or later. It is reasonable to believe that hand-made weapons preceded hand-made bridges, as hunting and fighting were the strongest motive-powers behind human needs and actions. To slay was the herald of to build, so the first bridges of handicraft ought to be placed in a likely inference among the later doings of Palaeolithic hunters and warriors. A horrible slowness marked each advance from a bad copy of a natural bridge to a slightly better one. In fact, only a few brilliant creative minds—not more than two or three thousand—separate our own social order from the strife of Palaeolithic savages. Into the coarse dough of humanity an infrequent genius has put some encHanted yeast. And we must needs believe that the dead routine of imitation, to which human nature has ever been enslaved,

held primeval man even more relentlessly than it holds ourselves. One misfortune more than any other delayed

a creeping progress : it was the fact that mankind had no cause to fear the most intelligent creatures among the lesser organisms. If snakes and beasts of prey had been as clever as were bees and ants and beavers, men could have saved themselves from extermination by one means only—by a rapid advance from frequent good ideas into great achieve- MAN AS THE MIMIC OF NATURE iii ments. Day after day the large human brain would have been called upon to produce large protective thoughts, and, had it failed to produce them day after day, the human race would have been food for enterprising rivals. We have no guess why Providence withheld from mankind this high discipline, this fateful choice between death and a swift

intelligence ; but we do know that the most dangerous of the lesser organisms have been the least quick-witted, and that men in their intercourse with natural things have shown a lethargic mimicry. Their cave-dwellings were

stolen from cave-lions and cave-bears ; their pit-dwellings were copied from the holes and tunnels burrowed by many

animals ; and in their lake-dwellings they collected hints

from five sources : natural bridges, the platforms built by anthropomorphous apes,* the habits of waterfowl, the beaver's dam and " lodge," and the nests of birds. In the round hut, which was made with branches and wattle-and- daub, stick nests were united to the plasterwork of rock- martins. Yes, a good workman in the construction of mud

walls does no more than rock-martins have done in all the ages of their nest-building. When these birds make their nests they use wet loam stiffened with bits of straw, and

each layer is allowed to harden before another is put on in a thickness of about half an inch for a day's work.t

'"' The orang in the Eastern islands, for example, and the chimpanzee in Africa, build platforms on which they sleep. t White of Selborne notes this fact. And Darwin notes two others of equal " interest. He says : The orang is known to cover itself at night with the leaves of the Fandanus; and firehm states that one of his baboons used to protect itself from the heat of the sun by throwing a straw mat over its head. In these several 112 A BOOK OF BRIDGES

Even more remarkable is the fact that men may have borrowed from several birds the idea which enabled them to pass from round huts into oblong cabins. In Australia, for instance, there are three birds—genera of the same

family—that build arched bowers with long sides ; and Darwin tells us to regard them as "co-descendants of some ancient species which first acquired the strange instinct of constructing bowers for performing their love-antics." One species of Australian bower-birds, the fawn-breasted variety, erects a platform of sticks as a foundation for its gabled hall of courtship, that measures nearly four feet in length and eighteen inches in height.

This structure is charmingly decorated, and if we could

magnify it to the size of Westminster Hall we should

be amazed by its beautiful architecture. Unmagnified, it

is a model to all primitive men, for it shows far more invention than a wigwam or than a charcoal-burner's hut. As soon as a student begins to understand what mankind has copied in Nature's wonderful school for mimics, he cannot fail to take delight in natural bridges and their influence on handicraft. At first he is humbled painfully by the small amount of creative wit that a million years

or so have gleaned from the big human brain ; but soon the novelty of feeling humble is more attractive to him than the vile habit of flattering human nature.*

habits we probably see the first steps towards some of the simpler arts, such as rude architecture and dress, as they arose among the early progenitors of man." Darwin refers to architecture as well as dress because of an earlier sentence on the platforms built by anthropomorphous apes. * But for this habit we should be less horrified by the acts of German " culture " in a time of war. I add this note to my proofs, September 26, 191 4. II AMONG THE HERALDS OF MAN

was during the Upper Miocene age that two or ITthree big apes migrated into Europe, probably from Africa, and passed from explorers into colonists. One of them was the Dryopithecus, a creature almost as tall as a man, and closely allied to Hylobates. He illustrated that organic art of caricature in which young Dame Nature excelled, many of her experimental efforts having Gargantuan humour in their shapes and proportions. When food was scarce the Dryopithecus became a nomad, a sort of four-handed Odysseus who was very well able to fight his own battles, whether he wielded a heavy stick, or hugged his foe, or from the shelter of a tree dropped missiles that cracked heads and made back- bones exceedingly painful. Hugging seems to have been his forte, after clawing and fierce blows had prepared the way for a close embrace ; and by his expert ferocity in defence and in attack he earned for himself the right to be a forerunner of several entertaining creatures, notably the gorilla and the chimpanzee and primitive man. He was inquisitive enough to use every natural bridge put in his path by good fortune. At first I see him on four sorts of natural bridge, and

I 113 114 A BOOK OF BRIDGES

no fault can be found with his activity. He crawls along

fallen trees over some torrents and chasms ; across a flooded river here and there he leaps in a shambling, lopsided fashion, when stepping-stones and boulders rise above

water-level ; he roams into hilly districts where many a

ledge of rock spans a dangerous gap ; but he enjoys himself most of all when a suspension bridge of branches enables him to amble from tree to tree across a deep-lying river pent

up between high cliffs. In these four bridges, each of them generic. Nature has arrived at utility in her usual manner, by alternating growth

and violence. The fallen tree, for instance, from which all timber bridges have been evolved by handicraft in a sequence of gradual improvements, belongs to the utility of

Nature's violent moods ; and this applies also to the bridge of stepping-stones. Earthquakes and floods distributed boulders over the beds of rivers, and from these boulders handicraft has developed piers and abutments. On the other hand, a bridge of long boughs—and I^ have used many a one myself—is a symbol not merely of growth but of abundance, and also of endurance. But it is not to be looked upon as the only suspension bridge along which our arboreal ancestry capered, and from which primitive mankind took, and take, hints in bridge-building. Let us remember also the pendent bridge of lianes, and of other tough creeping plants, which in many warm countries grew, and grow, from tree to tree, forming strong cables. On such a high- swung bridge I can see the Dryopithecus, suspended by his MAN AS THE MIMIC OF NATURE 115 hands, and learning tricks as a gymnast, while his mate squats between the fork of a branch and collects fleas from her baby.

When photographs of natural bridges lie around me on a table, there is another vision that comes before my mind in a succession of vivid pictures. I behold a shaggy little animal, partly an ape, partly a man, who stands upright on

a fallen tree ; below his feet a river in flood foams among

rocks there, beyond the peaked hills, a blood-red ; and over sunset makes a wondrous tragedy of colour. Somehow

the little animal is awed by the flaming sky, and stares at

it fascinated, his protruded mouth wide open, and his teeth gleaming. His arms are thin, sinewy, capable, hairy, and

very long ; they hang at full length, and their prehensile fingers grasp two sticks, one long and pointed, another short and knobbed. His breastbone looks weak as his shoulders droop forward, and horizontal lines of wrinkled skin run from each armpit across the narrow chest. His

legs are short and somewhat arched ; and their feet grip wood as a habit. The eyes, overhung by a ledge of bone, shimmer with a peculiar suspicion, an instinctive cunning,

very vigilant and fierce, that protects even tired sleep with

the alertness of a sentinel. The body is daubed with

yellow ochre and iron ore, as if to rival the coloured life

seen everywhere in Nature ; but through this decoration

much uneven hair is noticeable, and a coarse beard sur- rounds the face with a ruff rather similar to that which now gives pride to the Cebus capucinus. The head is ;

ii6 A BOOK OF BRIDGES becoming human, a real Pandora box, whence many banes and a few blessings will escape continually, and spread far and wide over the earth. At present this creature is a wild beast in the terrible nursery stage between apehood and savage manhood. Already he has lost the athletic ease and grace of his tree-top cousins. Not only is he out of joint with them, but his own lot is very perilous, a never- ending war against hardships and dangers. Beasts of prey know how weak he is ; most animals outrun him birds in their swift flight escape from his weapons, and he feels rage and jealousy when monkeys at play leap long distances from bough to bough. Out of his nature comes a pitiless hatred for all living creatures. Do you not see this earthling, this Adam of Evolution, part ape and part man, standing alone on a windfall bridge, with a river in

flood below his feet, and the sun a radiant crescent, blood-

red, dipping below that far horizon of peaked hills ? And yet this biped has been moved by the sunset, and also by an idea of his own, whose history can be read in deep lines of ploughed earth that run from the bridge to a wood over there, a hundred yards away. At this distance

from the river a tall tree was blown down, and a tribe of

ape-like men, guided by their leader, dragged it to the

bank-side and put it across the waterway, taking long days over the wonderful task. Nature at last has discovered a mind that can think in imitation. Her tree-bridge has a rival. At this moment the picture changes. A female creature ;

MAN AS THE MIMIC OF NATURE 117 appears, accompanied by several children. She is uglier than the male, because she suffers much more ; her family grows too fast, and for a long time its members are unfit to defend themselves. Never for an hour can she put aside her motherhood. Other animals are occasional parents, because their young are soon able to do their own business while she, our Eve of Evolution, for ever anxious about her helpless little ones, is an incessant mother through the few brief years of her fertility. Perils encompass her and them, and in a short time she is worn into old age. But she

loses her youth creatively ; there is not a privation nor a pain that her constant motherhood fails to make into a spiritualising of the heart, into a Vita Nuova, into the

starting-point for a fresh development. So she is human-

ised by suffering and love-humanised in spirit, that is to say—long ages before her body has matured into woman- hood. It is she who endows children with quickened

minds and with social inclinations ; and it is she who encounters with a yielding but tenacious courage the wild beast that male passions breed and perpetuate. Also—and this is very important—she is by temperament a practical

worker, whereas the male is not ; he thinks all the time of adventure, and his moods are incalculable. Even his

paternity is coarse-handed, and subject to furious greeds

and lusts. His brain is active enough to be awed by the strife of Nature and weak enough to be crippled by a

little reason. His character threatens to check his evolution.

Where the climate is hot, and food grows abundantly, he ii8 A BOOK OF BRIDGES

makes no progress; bad times alone compel him to work, and to pass very slowly, with a dogged reluctance, from handicraft to handicraft. His higher education begins when he chips a stone into a pointed weapon and feels the rhythmical enjoyment that accompanies invention and

manipulation. In fact, handicraft is the earliest public

school, the first university ; it helps motherhood to transform the brute male into a being somewhat better,* a primeval savage. Yet naturalists have confirmed them-

selves in three bad habits : they say too little about handicraft, they admire man far too much, and they patronise woman. When they do not bury Woman in the term Man, they glance at her with a condescending half-

pity, as bibliophiles glance at second or third editions ; and

so it is worth while to do some justice to our primitive foremother, the Eve of Evolution. With her incalculable partner, the irrational male, she and her family wander from district to district. At times they settle under a rock-shelter or in a cave, and make

footpaths from it to watering-places and hunting-grounds.

Here and there a river is crossed by stepping-stones, and

more than one ravine is spanned by branches and by a

fallen tree. What is their attitude to these things ? The

windfall tree-bridge, like every other gift from Nature, is a

* Better in many respects, but not in all ; for as Darwin points out, it was the self-condoning mind of man, not the instinct of any brute beast, that came to use infanticide as a custom. "The instincts of the lower animals are never so perverted as to lead them regularly to destroy their own offspring." Only arguments can choose and approve unnatural habits. MAN AS THE MIMIC OF NATURE 119 bane to them as well as a boon, for it is a road open to dangerous animals ; as such it is a thing to be guarded, and many a fight in its defence occurs, creating traditions of bravery which are long remembered. Further, as time goes on, and the progenitors of man

become more human, the pressure of competitive life draws ever more and more attention to the incompleteness of natural bridges. For example, stepping-stones may be

useless when they are needed most of all, in wet seasons

and after storms; and the tree-bridge is so narrow that

warriors cross it only one by one, so their slow attack gives a terrible advantage to a brave defence. These hindrances, so obvious and so unpleasant, make appeal to the inventive

faculty that a few men possess. Not much is required. From four or five seedling ideas a great many improve-

ments will grow; and now is the moment for us to choose a vague tentative date for the beginning of this gradual development. Most people are bored by prehistoric archaeology, because

its earlier periods are as undated as is the oblivion of coma.

So a date in obscure history, however tentative it may be,

is very helpful ; the mind rests on it, somehow, anyhow, and

feels that the lost legions of the dead years left some oases

in the Saharas of ancient time. And- this point is not the only one that concerns the general reader who does generally read. In recent years the antiquity of handicraft has been extended very much by a "find" of eagle-beaked flint implements, with other tools, below the Pliocene deposits —

I20 A BOOK OF BRIDGES on the East Anglian Coast. The eagle-beaked flints are undoubtedly of human manufacture, and they carry back the ancient stone period of man to the Tertiary times. Sir Ray Lankester writes on this important subject, and his knowledge helps us a great deal, though we have to recover it from entangled sentences. For example* : " Evidence has been for twenty years or more in our possession (in the form of stone implements) of the existence of man in Europe in the warm period which preceded the Pleistocene, with its glacial clays and drifts and its gravels deposited on the sides of existing river valleys, sometimes 800 feet above the level of the bed to which the stream has now worn down its excavation, many miles wide. The discovery within the last four years of beautifully worked flint implements of the shape of an

' eagle's beak (called rostro-carinate ') and of other serviceable forms below the marine Pliocene shelly sands—known

' as the Red Crag ' in Suffolk—separates the migrations and mixtures of human tribes and groups, of which we have any knowledge, by a huge chasm of geologic time from the date of the earliest European population. The best geologists have come to the conclusion that half a million years (and it may well be twice as many) separate us from the days before the Crag Sea laid down its shelly deposits on the East Anglian Coast. Yet there were skilful men—not mere ape-like creatures using sticks and roughly- broken stones, but men capable of making and admiring * " Daily Telegraph," September 8, 1913, p. 5.

;

MAN AS THE MIMIC OF NATURE 121 symmetrical, well-finished flint tools, and of using them to clean skins and to plane wood—living a human, creative, dominating life here in Western Europe in those immensely remote days. Probably enough, as great a period as separates those skilful men from us separated them from the earliest unskilful 'commencing' men of the tropical zone." Yes, probably enough, but yet we must not suppose that handicraft in Western Europe has ever had a standard of uniform merit. As our own work is very often inferior both to that of the Romans and to that of the Middle Ages, so the eagle-beaked tools may denote nothing more than a local industry which a man of genius had originated. No other implements have been dug up from Pliocene deposits in other European localities, hence students of art and architecture cannot accept the generalisation advocated by Sir Ray Lankester. As well suppose that the whole of Western Europe produced in the same age many painters equal to the Van Eycks, or many bridge- builders of a piece with Caius Julius Lacer, or the good Saint B6n6zet. It is enough to believe that at a date to be known vaguely as 500,000 B.C., a craftsman of genius lived and laboured in a district of Western Europe, now called the East Anglian Coast. How far his influence extended, or how long it lasted, we have no inkling yet but it may have been the influence, not of a rare genius, but of a school tradition which migrating tribes had spread through many parts of Europe. Anyhow, the eagle-beaks 122 A BOOK OF BRIDGES are historic facts and their manipulative skill gives us the right to make reasonable inferences.

For example, we may infer that if the craftsman who made an eagle-beaked tool showed intelligence in some other useful ways, he did no more than common justice to his humanity. Suppose he cut down a tree with his flint axe, choosing one that grew aslant over a chasm or across a river ; or suppose he piled stepping-stones together in the middle of a waterway, and then used this pier as a support for two tree-trunks whose far ends rested on the banksides. Neither of these ideas has more mother-wit than that which has enabled ants to bore tunnels under running water, and to make active bridges by clinging to each other in a suspension chain of their wee brave bodies. Not many human minds in any period of history have been

as diligently rational as ants ; but let us risk the conjecture that the first advance in bridge-making began among the rostro-carinate workmen probably more than half a million years ago. To cut down a tree, in order to get a bridge at a chosen

place, was a good idea in primitive enterprise, but it was not

enough ; it gave but little additional help in tribal wars,

since it repeated the narrow footway, the main drawback of windfall tree-bridges. Two or three trees laid side by side were necessary, and at least two piles of stepping-stones to carry enough trees over a fairly wide river. Such were the

first improvements that war and social life demanded from the wit of primitive mankind, and often they were de- MAN AS THE MIMIC OF NATURE 123 manded in vain for many long ages. Even at the present time there are tribesmen who feel well pleased with themselves when they make single and double tree-bridges. I am told, for instance, by Mr. T. Beddoes, a traveller and trader in Equatorial Africa, that often in his wanderings he has made and used a tree-bridge to cross a narrow creek, following a native method for the sake of its ready convenience. "The natives," he writes, "cut down the tallest trees on a bank of the waterway that they intend to bridge, then they make a handrail with bush-rope fastened to short upright sticks which are placed about three feet apart.

Bush-rope is made from creepers or from long cane vines.

Sometimes an attempt is made to flatten the upper surface of the tree ; but this work is uncommon, as African natives are lazy ; they detest manual labour. There are trees that grow to an enormous height ; one of them measured a hundred feet odd, so fairly wide creeks and streams can be bridged. But canoes are the favourite means of crossing rivers ; they carry light loads well enough, and they need less labour than bridge-building." This peep into the aboriginal mind reveals a dire stagnation. But although no other thing in Nature is less uncommon than human initiative, yet the men of the eagle-beaked tools may have made tree-bridges, and also such stone bridges as the lintel-slabs at Wycollar (p. 60). For this work required nothing more than imitation, while the eagle-beaks added some invention to a deft handicraft. Many an earthquake had made a slab-bridge, and other —

124 A BOOK OF BRIDGES models were formed by the lava from volcanoes which hardened into a thick crust over many gaps in the land. From these bridges—a tree cut down with a flint axe, and a single boulder or slab laid from bank to bank of a stream—came three lines of descent in very slow, yet fertile handicraft ; and to the history of each a long book could be given. Let me name them one by one :

1. The Slab-bridge with stone piers.

2. The Tree-bridge with stone piers.

3. The Tree-bridge with timber piles. Ill

THE SLAB-BRIDGE WITH STONE PIERS

this we follow an evolution from unhewn fragments INof rock upheld by stepping-stones to Gyclopean slabs of hewn granite and marble supported by well-made stone piers. The halting development of this bold stonecraft was loved and fostered by that original people which for convenience we call Iberian-, and which at some unknown period migrated from Asia, "and swept round Europe, whilst a second branch colonised the Nile basin and Northern Africa, and a third streamed east and occupied China and Japan. The master idea in the religion of this people was the cult of ancestors, and the rude stone monuments, menhirs, cromlechs, and kistvaens they have left everywhere, where they have been, all refer to commemora- tion of the sacred dead. The obelisk in Egypt is the highly refined menhir, and the elaborate, ornamented tombs of the Nile valley are an expression of the same veneration for the dead, and belief in the after life connected with the tomb, that are revealed in the construction of the dolmen and kistvaen." * What could have been simpler than the building methods of the Iberians? We see them at Stonehenge, which dates

* " A Book of North Wales," by S. Baring-Gould, pp. 2-3. 125 —

126 A BOOK OF BRIDGES

from about the year 1680 B.C., according to the astronomical calculations of Sir Norman Lockyer and the late Mr, F. C. Penrose.* Here we have the primitive circle of large stones, and the rugged trilithon (two rude uprights, or menhirs,

connected by a long table slab or lintel). There is a feeling

for massive construction, but it is barbaric. The clapper bridges over Dartmoor rivers belong to this elementary crafts-

manship. Each is a cromlech repeated in several spans

over water, no matter when it was built (p. 100). Among the

ancient Egyptians there were kindred bridges ; and the Chinese have managed to preserve in a formidable handicraft an Iberian fondness for the trilithon. Mr. O. M. Jackson tells me that many slab-bridges in Sichuan have

lintels about twenty feet in length ; they are decorated by

sculptors with a dragon's head and tail at the junction of two lintels and a stone pier. Every dragon's head looks upstream, and the tail curls out on the downstream side; so the slabs appear to rest for security on the back of a guardian dragon.

There is a Chinese bridge of lintel-slabs, concerning which very different descriptions have been written, but

even the most moderate account makes it more than four

and a half times longer than the Pont Saint-Esprit (p. 293).

Gauthey writes about it as follows : " At Loyang, in the Province of Fo-Kien, on an arm of

* These calculations can be studied at the British Museum side by side with an excellent model of Stonehenge. On the supposition that Stonehenge was a sun- temple, its date has been astronomically determined as about 1680 B.C., with a possible error of two centuries either way. MAN AS THE MIMIC OF NATURE 127

the sea, there is a bridge with three hundred spans ; its construction went on for eighteen years and employed twenty- five thousand workmen. Technically it belongs to the same class as the bridges of ancient Babylon, which are said to have been made with long and flat stones laid from pier to pier. If Loyang Bridge be 8800 metres in length, as some writers affirm, then its piers will be 4 metres 87 in thickness, and its spans in width will measure 24.36 metres. The footway is 22.74 metres. The long slabs are 5 metres thick and 3 metres wide. As for the piers, they are 23 metres in height, and bear marble lions carved from blocks 7 metres long." Gauthey gives a drawing of this bridge, and his measurements are taken from the Atlas of Martimmart. They have an air of great exaggeration. As Gauthey remarks, " It is difficult to believe that the tabular stones are as large as they are presumed to be : their bulk is more than threefold greater than that of the obelisk at Rome in the Place de Saint-Pierre. Besides, M. Pingeron speaks of them as being fourteen metres long by a metre and a half in thickness and in width, so he diminishes by a full half the length of Loyang Bridge. Even with this reduction it is a wonderful achievement, more than four and a half times longer than the Pont du Saint-Esprit."* The dimensions given by M. Pingeron may be accurate ; they represent a hugely magnified clapper bridge decorated with sculpture and carried on tall piers for a distance of

* Emiland Gauthey, "Traitd de la Construction des Fonts," a.d. 1809-1816. 128 A BOOK OF BRIDGES

4400 metres, in a series of three hundred spans. The marble lions, I suppose, ornament the parapets above the piers, like those on the bridge of Pulisangan (p. 310). Marco Polo visited the province of Fo-Kien, where Loyang Bridge is said to be, and stayed at the city of Kue-lin-fu, known to-day as Kien-ning-fu. Here he was greatly struck by " three very handsome bridges, upwards of a hundred paces in length, and eight paces in width."* Not a vivid description, yet enough to prove that notable bridges in Fo-Kien have had a long history.

* "The Travels of Marco Polo." Everyman's Library, p. 315 It is to be remembered that Marco Polo's "paces" are geometric. IV

TREE-BRIDGES WITH STONE PIERS THE most famous bridge in this kind is the one built by Trajan over the Danube, just below the

rapids of the Iron Gate. Trajan required it for his wars against Dacia, which in a.d. io6 he brought to a successful end, the Dacian leader Decebalus being slain and his people subdued. The bridge had played its part, yet Hadrian, the next Emperor, who began his reign ten years afterwards, looked upon it as a dangerous highway, open to incursions from Dacian revolts, and for this reason he destroyed some piers and the footway. Perhaps Hadrian was jealous of Trajan's work, for two fortified gates and a handful of Roman troops could have defended the bridge against barbarians. There has been much controversy over this great structure. Its architect was Apollodorus of Damascus, who designed also the Trajan column placed in the centre of the Forum Trajanum. A bas-relief on this column represents the bridge, but in a manner at odds with the written description given by Dion Cassius, who held important offices under Commodus, Caracalla, and Alexander Severus, A.D. 180-229. Dion Cassius wrote a history of Rome, in eighty books, and a small portion of this work has come K 129 I30 A BOOK OF BRIDGES

down to us entire. His evidence then is worth having,

and it states that the bridge had twenty piers of hewn stone, 150 feet high and 60 feet wide, with openings between them of 170 feet, spanned by arches. Doubt has been thrown on the accuracy of this description, because the

bridge on the Trajan column is unsuited to a span of 170 " feet ; nevertheless thirteen piers are still visible out of the

twenty, according to Murray's ' Handbook.' The writer has not been able to find any accurate measurement of the

' width between these piers, but as the Handbook ' speaks of the length of the bridge as perhaps 3900 feet, and as the Conte Marsigli, writing from personal observation, in a letter to Montfaucon, gives the total length as probably 3010 feet, there can be no doubt that the spans were very considerable and that the representation of the

design in the bas-belief is almost wholly conventional.

The one point as to which it gives clear information,

not supplied elsewhere, is that the superstructure was of wood."* In other words, this colossal work was a descendant of the earliest tree-bridges, in so far as the footway was concerned. Whether arched timbering was carried from pier to pier to uphold the roadway, as in the bas-relief,

is a question of no great moment ; the horizontal bearing beams would need support, no doubt, since they had to span openings far wider than the longest trees ; and it

* Professor Fleeming Jenkin's " Essay on Bridges." ;

MAN AS THE MIMIC OF NATURE 131 is useless for us to guess in what way this support was carried to them from the lofty piers, which were built with enormous blocks of stone. The main point is that one phase of bridge-building, whose first models were fallen trees lying astride rivers and chasms, seems to have culminated in the masterpiece of Apollodorus of Damascus. Much inferior work of the same kind, very varied and entertaining, has been common everywhere

some of it belongs to Kurdistan, for example (p. 73) ; and in the Lledr Valley there is a good Welsh specimen called

the Pont-y-Pant, whose wooden footway is primitively rustic, and whose piers are fragments of rock gathered from the river-bed and piled together. I have found at Thirlmere

a quaint thing which is partly a dam and partly a bridge. The dam, an undulating wall of unmortared stones, has at equal intervals a few angular openings over which wooden hand-bridges are thrown. It would be easy in a shallow river to make a fish-pool by heaping boulders into a dam of this rude sort, and the completed work would rank no higher than the beaver's contests against running

water. So I tell myself that many a tribe in the great period of prehistoric art, about 50,000 years B.C., ought to have built for itself a bridge as elementary as the Pont- y-Pant and a perforated dam as uncouth as the one at Thirlmere. From this untutored handicraft we look back again at the great art of Apollodorus, whose vast bridge over the Danube was near the ancient town of Nicopolis. !

132 A BOOK OF BRIDGES

What a long travail in the gestation and birth of infrequent ideas ! Even half a million years ago a man of the eagle-beaked tools may have put a boulder under a tree-bridge because the tree was thin and swayed too much on a windy day ; half a million years ago, and yet we do not feel ashamed of the Pont-y-Pant —

TREE-BRIDGES WITH TIMBER PILES LET me restate the first periods in their history : I. A windfall tree lying astride a gap in the ^ land.

2. A windfall tree dragged from a wood and put astride a gap in the land, perhaps by a tribe of semi-human creatures directed by a superior mind.

3. A savage of genius, perhaps as early as the Tertiary period, cut down a tree in order that it might span a dangerous creek or an abyss in the mountains. Intelligently, with the aid of a flint axe, he copied the work done by many a gale of wind ; and in this act of simple mimicry he discovered the first principles of secure bridge-making. The footway was strong, and branches from the tree-trunk gave support to clutching hands. Any bough that blocked up the footway was topped off. Even to-day we find in country woods a good many rustic bridges hewn from tree- trunks, and guarded at the sides by hand rails of dressed branches. Their footways are no wider than the planed surface of a well-grown tree.

4. Another savage of genius, thousands of years later, maybe, took a hint from a troublesome inconvenience which 133 134 A BOOK OF BRIDGES

from the first had been present in tree-bridges. The footway being too narrow, he put two or three trees side by-

side, so that two or three warriors might cross it abreast, instead of weakening their attack by an advance in single

file. But this improvement suggested other changes of much

greater value both to war and to social life. However carefully the trees were l^id side by side, their rounded

surfaces left a valley between them ; and gaps were formed by curved trunks and by gnarled excrescences. So the widened footway had drawbacks of its own. Often, on a

rainy day, naked feet would slip, for the trees were polished

by long use ; and many a slip would either break or strain an ankle. Yet the wit of mankind would bear these

troubles with a grumbling patience ; thousands of years

may have passed by unprofitably ; but sooner or later a man of genius would perceive that every defect in a bridge suggested an improvement. The valley between the tree-trunks could be filled in with soil and pebbles and turf; a round foothold polished by long use and slippery after rain, could

be flattened and roughened ; and where the trees diverged from each other, making traps for the unwary, invention could be busy for a long time. Why put the trees close together? If they were separated by half a stride, then covered transversely with brushwood and turf, a much better bridge would be made without much effort. Again, suppose the long beams were thin saplings that shook too much underfoot, particularly when a tribe of shouting MAN AS THE MIMIC OF NATURE 135 warriors ran across them in a hot attack. To steady such a bridge with props would be a great convenience, and timber props would serve as conveniently as boulders and piled stones. A criss-cross of logs made an excellent pier,* for example, and forked boughs, which entered into several phases of primitive handicraft, made good piles. f We know not when these quite simple improvements gave some dignity to manual work, but their inception needed only a little mother-wit. Some Quarternary men ripened a great deal more in their arts, as painters and sculptors and engravers. In this monograph several descendants from the aboriginal tree-bridge are studied briefly, and I refer you to the Index. Some varied English specimens are given in Francis Stone's "Norfolk Bridges"; and from Don Antonio de UUoa (1716-1795) we can learn how wooden bridges have long been made in the mountainous parts of South America. They " consist of only four long beams laid close together over a precipice," and they " form a path about a yard and a half in breadth, being just wide enough for a man to pass over on horseback." Here the beams have a flat surface, and lie together like boards on a floor.

It is primitive handicraft of a low sort, for the beams would carry a much wider footway.

* For criss-cross piers, see Index.

t Forked boughs were used in the building of roofed walls, and bent trees in the building of gabled cabins. VI

SOME TYPICAL TIMBER BRIDGES

A S there is no room here for a pedigree of timber /_% bridges, let us choose a few examples which are A jL. particularly famous in history. It will be enough if we take three : (i) a prehistoric lake-village, (2) the Pons

Sublicius of the Romans, and (3) the wonderful work done in the eighteenth century by two Swiss carpenters, the brothers Grubenmann. Lake and marsh villages were the highest form of pre-

historic bridge-building ; their thronged platforms, dotted with round huts, not only put a defence of water between home life and prowling foes, but heralded all the housed bridges that the world has seen during its periods of written history. Whether we study Old London Bridge, or the criss-cross bridges with frail shops in Kashmfr (p. 71), or the booth-bridges of China (p. 210 no^e), or the roofed timber bridges of Switzerland (p. 291), we are concerned with a pedigree that starts out from the first Neolithic lake-dwellings. But the later stone period, known as Neolithic, is not very old. Between it and ourselves there is a span of about nine thousand years, or a few thousand years more.*

* Sir Ray Lankester, "Daily Telegraph,'' August 27, 1913, p. 6.

136 MAN AS THE MIMIC OF NATURE 137

But British lake-dwellings are attributed to a time still later, the Bronze Age, whose date in the British Isles maybe fixed tentatively at from 1200 to 1400 B.C.* Further, as pit-dwellings lasted to the days of Tacitus among some Germanic tribes.t so a British lake-village here and there defied progress till the coming of the Romans. There was one at Glastonbury, and its " Late Celtic " routine of life has been studied carefully from its remains. Standing on an artificial island formed by a series of timber bridges, it occupied nearly three and a half acres, and its round huts, about sixty in number, were inter- mingled with a few square cabins that marked the most recent enterprise. Low walls were erected with upright posts driven into the artificial island at a distance of about a foot from each other; then this framework was wattled and plastered with clay. A few rough slabs of lias stone made a doorstep, a piece of timber lay across the threshold, a wood fire crackled on a central hearth, and every household wanted to feel entirely safe, for a tall and tight palisade enclosed the little colony. In this primitive defence a great many poles were set up side by side ; they ranged in height from five to ten feet. Wolves and war were feared very

* Robert Munro's "Archaeology and False Antiquities," p. iz. t Tacitus remarks of these wild tribesmen: "They are accustomed to make artificial caves in the ground, and they cover them with great heaps of dung, so as to form a shelter during the winter, and a storehouse for the produce of the fields. For in such dwellings they moderate excessive cold, and if at any time an enemy should come, he ravages the parts that he can see, but either discovers not such places as are invisible, and subterraneous, or else the delay which search would cause is a protection to the inmates." 138 A BOOK OF BRIDGES

much, evidently ; and yet the villagers were devoted to that self-decoration with which men and women for many a long period had tried to rival the patterned colours given by Nature to birds, and beasts, and insects, and fish, and snakes, and flowers, and stones. They loved rings, cut from amber and jet and glass; wore bracelets, some of bronze, others of Kimmeridge shale glass beads had their ; vogue, and clothes were fastened together with bronze safety-pins, or with split-ring brooches of bronze. Perhaps the women were truly feminine, and wore a monstrous head- gear, outraging their good looks in fashionable efforts to renew their beauty. Drawing closer to this village perched up on primitive

bridges, we find in it some weavers and spinners, a few wood-carvers who were true artists, some carpenters who had lathes, and some clever smiths who made iron knives,

awls, spades, bill-hooks, gouges ; and a few ambitious

potters decorated their work and gave it a careful finish. Harvests were grown somewhere, as women used querns to

grind the corn. Good little people ! They wanted to be

pacific and artistic ; fighting did not set their genius ; and so they vanished. How could they hope to protect the gift of life when British war-chariots and Roman soldiers began to fight in the neighbourhood, obeying the dread

mysterious law of fruitful carnage ? They slunk away from the fierce midwifery of war, fearing the long self-sacrifices of a painful renaissance. Their gentle enterprise lasted from about the second or MAN AS THE MIMIC OF NATURE 139

third century b.c, to the Roman occupation. Among the remains of their village several skulls have been found, mild-looking skulls of a long shape, like those which have been taken from the long barrows. It was an Iberic tribe that trifled with peace and art, showing an epicene fervour akin to that of our cooing sentimentalists. Perhaps the Romans allowed the village to fade out of being, or perhaps

they cleared it away as a futility, for neither Roman coins

nor Roman wares have been found on the site, though remnants of Roman villas and potteries have been unburied in the vicinity.* It is certain that most of the Roman bridges were built with timber. Thousands of trees were cut down when a paved road was constructed, so that cheap material for bridge-building was always at hand when the road was

carried over ravines and rivers, t Besides, if a great many stone bridges had been built by the Romans, in Britain and elsewhere, many remains of the piers would have been found

* Boyd Dawkins, "The British Lake Village," 1895; Sidney O. Addy, "The " " " Evolution of the English House ; The Times," September 19, 1895 ; Manchester Guardian," September 22, 1896; and A. Bulleid, "Somersetshire Arch, and Nat. Hist. Society's Proceedings," 1894, reprinted in 1895. t The making of a Roman road was a formidable enterprise. H. M. Scarth, in his " Roman Britain," relates how a portion of the Fosse Road at Radstock, about ten miles south-west of Bath, was opened in February, 1881, and that its work showed

the following details in constructive method, i. Pavimentum, or foundation, fine earth, hard beaten in. 2. Statumen, or bed of the road, composed of large stones,

sometimes mixed with mortar. 3. Ruderatio, or small stones well mixed with mortar.

4. Nucleus, formed by mixing lime, chalk, and pounded brick or tile; or gravel, sand, and lime mixed with clay. 5. Upon this completed foundation the summum dorsum, or surface of the paved road, was laid with infinite care. So the men of a day built roads for the centuries, and were proud to be servants to the unborn. ;

I40 A BOOK OF BRIDGES in all big rivers. We know, too, that the Romans were tolerant in their attitude to native bridgemen, since the criss-cross piers of the Gauls outlived the Roman Empire by many centuries. We know not, neither can we learn, how the Romans themselves made timber bridges. Even their Pons Sub- licius, a sacred monument, hallowed by historical traditions

and by its connection with religious ceremonies, was described imperfectly. To this day experts quarrel over

its technique and over its position on the Tiber. Colonel

Emy has tried to reconstruct it, but his attempt differs from that of Canina, and we cannot choose between them. The utmost we can say is this—that the Pons Sublicius was a tree-bridge resting on piles, and dating from the times of Ancus Marcius, who reigned from B.C. 640-616. If the

chief priests did not build it, they certainly kept it in repair, always using wood with a pious regard for a venerated past

and with their help it existed as late as the reign of Con-

stantine (a.d. 306-337), when it was mentioned in the

" Notitia," and when a bridge was named after it at Con- stantinople. But the Pons Sublicius became obsolete as a

highway for traffic, and then a good understudy bridge of stone—the Pons Lapideus—was built close at hand, and was known sometimes as Pons Sublicius, a title of honour. Sir William Smith believed that these bridges were outside the city, beyond the Porta Trigemina, and that the wooden one was built by Ancus Marcius in order to connect the town side of the Tiber with a new fortress erected on the Janiculus. MAN AS THE MIMIC OF NATURE 141

We pass on now to the brothers Grubenmann, whose best work was destroyed during the war of 1799. Ulric and Jean Grubenmann were village carpenters, born at Teufen, in the canton of Appenzell. Ulric seems to have been the abler of the two ; certainly he was a man of true genius who spanned great distances by his unrivalled use of corbelled and trussed timber bearings. It was in 1755 that he began his suspension bridge at Schaffhausen, and in 1758 this work was complete. There were two spans in a distance of 364 feet, and they formed an elbow that pointed upstream. The abutment near Schaffhausen was 171 feet from the angle, and from the angle to the opposite shore was 193 feet. Ulric had decided that the bridge should cross the Rhine in one magnificent flight from abutment to abutment, but the town authorities interposed and told him to find use for a stone pier belonging to a bridge which a flood had ruined in 1754. Being a Swiss by birth and by training, Ulric Grubenmann followed an ancient tradition in

Swiss carpentry, covering his bridge with a solid roof ; and so perfect was the bridge, so admirably scarfed, trussed, strutted, braced, bolted up, and suspended, that only two

faults could be found with it : the roof was too heavy, and the parts were too dependent on each other. An injury to one portion of the structure might have been disastrous to the whole bridge—a vital consideration in a warfaring time. Grubenmann's methods were simple. " The braces pro- ceeding from each abutment," said Telford, " are continued 142 A BOOK OF BRIDGES

to the beam which passes along the top of the uprights, and the lowest of these general braces are actually united under that beam, thereby forming a continued arch between the

abutments, the chord line of which is three hundred and

sixty-four feet, and the versed* sine about thirty feet. These braces are kept in a straight direction by the uprights, which are placed seventeen feet and five inches apart. If this bridge had been formed in a straight line between the

abutments I can see no reason why this form of construction should not have supported a roadway of about eighteen feet in breadth, as well as a slight roof; because, in that case, all the weight arising from the braces which proceed from the middle pier would have been saved, and the roof might have been made much simpler and lighter." While Ulric Grubenmann was working at Schaffhausen, his brother Jean built a similar bridge at Reichenau, two

hundred and forty feet in a single span ; and some years later the two brothers constructed their Wittingen Bridge

over the Limmat, near Baden, giving to it a span of three

hundred and ninety feet. They were famous now, and their influence travelled from Europe to America, where it found in Bludget an able interpreter, Bludget's bridge over the Portsmouth River being similar in technique to the bridge at Schaffhausen. Since that time the evolution of timber bridges has remained in the United States of

America, where it has ranged from the criss-cross of logs for bearing piles to the most intricate combinations of lattices and trusses. Very often there is far too much MAN AS THE MIMIC OF NATURE 143 intricacy, and no thought at all is given to military con- " siderations (p. 352). Many wooden American bridges are trusses which almost defy analysis, the designs being, however, obviously suggested by an attempt to combine at least two of the three main types of bridges. No advantage whatever is gained by a combination of this kind ; on the contrary, great disadvantage is almost sure to follow^ its adoption, namely, that it will be impossible that each part of the structure should, under all circumstances, carry that portion of the load which the designer entrusted to it. For suppose a bridge constructed partly as a girder and partly as a suspension bridge, the girder being very stiff and deep, the chain perfectly flexible with considerable dip.

Let the chain and girder be each fit to carry half the passing load. It is perfectly conceivable that the deflections of the two should be so different that the girder would, under the actual load, break before the chain was sensibly strained, or the difference in the relative dip of the chain and depth of the girder might be such as to cause the former to give way first."*

* Professor Fleeming Jenkin. If any reader wants to continue the study of timber bridges, let him turn to Colonel Emy and to the huge volumes compiled and edited by Hosking. But it is clear enough that timber bridges belong to the past ; in these days they are ludicrously out of joint with the needs of social life, owing to the rapid advance which "progress " has made in artillery, in high explosives, in airships, and in aeroplanes. ;

VII

PRIMITIVE SUSPENSION BRIDGES

have seen (p. 114) that the first suspension WEbridges were of two sorts : (a) long branches which had grown across rivulets and chasms

(d) thick and tough creeping plants by which many forest trees were festooned to one another. It is a vast evolution from these natural things to the art of Ulric Grubenmann, the forerunner of metal suspension bridges.* Unfortunately

it is also an evolution which we cannot follow through many consecutive phases, artists and historians having failed to record its growth. We cannot suppose that the

* These date from about the year 1816, when Galashiels Bridge was con-

structed. It was only 112 ft. in length. But in 181 9 Telford designed the Menai

Bridge, in which the span of the catenary is 570 ft. and the dip 43 ft. The success of this work gave rise to much imitation, and in several places very great projects

were carried through with success. At Pesth, for instance, the span was 666 ft.,

and at Fribourg 870 ft. But engineers, having no imagination and but little prudence,

went too far, so they had to retreat from their cocksureness. Soon it became evident that a long suspended bridge of metal suffered much from the lateral oscillation caused by wind, and that its flexibility made it unfit for railway traffic. " The platform rose up as a wave in front of any rapidly advancing load, and the masses in motion produced stresses much greater than those which could result from the same weights when at rest. Moreover, the kinetic effect of the oscillations produced by bodies of men marching, or even by impulses due to wind, may give rise to strains which cannot be foreseen, and which have actually caused the failure of some suspension bridges. On the i6th of April, 1850, a suspension bridge at Angers gave way when 487 soldiers were passing, and of these 226 were killed by the accident." —Professor Fleeming Jenkin. 144 MAN AS THE MIMIC OF NATURE 145

ancients neglected suspension bridges ; from the spider alone they must have learnt that pendent ropes made a good bridge ; but we know not what they achieved in this airy handicraft. Many people of to-day show in primitive hammock-bridges that their ancestors were influenced by the work of spiders. In countries so far apart as China and Central Africa and Northern India, for example, there are hammock-bridges of cane and osier, netted elaborately at the sides and swung by bamboo cables, as in China, or by ropes made from the silky fibres of the Nilgiri nettle, as in the Bermulda Hills.

Whatever sort of primitive rope is employed, its first model was the gnarled and twisted stem of a vine-like creeping plant.

Perhaps the most ancient suspension bridge in China is the one known as Liu Soh or Lew saw, literally a slip rope. A bamboo cable is fixed from side to side of a ravine, not in a level line, but a little aslant, so as to form a mild sort of switchback. A traveller carries a wooden saddle with a

deep groove in it ; the groove fits the bamboo cable, and straps fasten the saddle and give confidence to the jockey,

who travels at a rapid speed when he is fat. On his return journey he is pulled up the bridge by ropes. In the mountains of Sichuan there are hundreds of these single cable- bridges.* What are they but lianes and vine stems />lus

a little human primitiveness ? Don Antonio de Ulloa, the Spanish Admiral, describes

* From information kindly supplied by the Rev. O. M. Jackson. —

146 A BOOK OF BRIDGES a Peruvian bridge closely allied to the Chinese Liu Soh, and called the tarabita. Ulloa noticed it on several rivers, but particularly on the rapid Alchipichi. The tarabita is only a single rope made of bujuco, or ox-hide thongs twisted into a cable from six to eight inches in thickness. It is extended from one side of the river to the other, and anchored firmly.

On one bankside it is controlled by a wheel, or winch, that makes it either taut or slack. A leather cradle is hung from the tarabita by two clasps that have rounded heads ; two ropes are stretched across the river and bound to the travel-

ling clasps ; a wayfarer sits in the cradle and is pulled across by the guide-ropes. Even mules are slung from two tara- bitas, according to Antonio de Ulloa, whose book on South America was published in 1748, at Madrid. An English translation appeared in 1758, and ran into five editions. Let me give a quotation from the fourth, issued in 1806. It concerns a venerable suspension bridge akin to the bamboo variety made in the mountains of Sichuan in

China :

" Over the river Desaguadero is still remaining the bridge of rushes invented by Capac Yupanqui, the fifth Ynca, for transporting his army to the other side, in order to conquer the provinces of Collasuyo. The Desaguadero is here between eighty and a hundred yards in breadth, flowing with a very impetuous current under a smooth, and, as it were, a sleeping surface. The Ynca, to overcome this difficulty, ordered four very large cables to be made of a kind of grass which covers the lofty heaths and mountains of that MAN AS THE MIMIC OF NATURE 147

country, and called Ichu by the Indians ; and these cables were the foundation of the whole structure. Two of them being laid across the water, fascines of dry juncia and totora, species of rushes, were fastened together, and laid across them. On these the two other cables were laid, and covered with the other fascines securely fixed, but smaller than the

first, and arranged in such a manner as to form a level surface this means he procured a safe passage for his ; and by

army. This bridge, which is about five yards in breadth,

and one and a half above the surface of the water, is carefully repaired or rebuilt every six months, bythe neighbouring provinces, in pursuance of a law made by the Ynca (Capac Yupanqui), and often since confirmed by the kings of Spain."*

In the first volume of his book, chap, vii., Antonio de Ulloa visits the Andes, and finds there some tree-bridges, some stone bridges, and some complex bujuco bridges. The stone variety he does not describe, but he writes interestingly about the bujucos. When six cables have been made by twisting together strips of ox-hide they are suspended across

a river, not in a single row, but in two tiers, the lower one with four cables, the upper with two. Over the lower tier

branches and canes are laid transversely ; and when this

floor is braced to the upper cables, there is a sort of cage within which travellers can walk in safety while the bridge swings.

* "A Voyage to South America," Antonio de Ulloa, translated from the Spanish by John Adams, Fourth Edition, Vol. II, p. 1 64. 148 A BOOK OF BRIDGES

"On some rivers of Peru," says Ulloa, "there are bujuco bridges so large that droves of loaded mules pass over them particularly over the river Apurimac, which is the ; thoroughfare of all the commerce carried on between Lima, Cusco, La Plata, and other parts to the southward." Humboldt passed over one of these pendulous bridges, and Miers crossed another which was strong enough to bear the

traffic of pack-mules, though it was two hundred and twenty-five feet in span. And now we must pass on to a half-suspension bridge which is very common among the N'Komis, a tribe that inhabits the Fernan Vaz district in Equatorial Central

Africa. It is a bridge built with Y~shaped sticks. Two parallel rows of these pronged branches are driven into the bed of a stream, and into the banksides; then long runners are put between the forks to bear a footway of sticks laid across them transversely. Mr. Thomas Beddoes, an African trader, and traveller,

draws my attention to this bridge of forked branches ; and tells me also that in the Agowe district, but far inland from the banks of this river, he came upon a primitive suspension bridge partly made with very thick vines—vines as thick as a man's leg—which were joined together into a couple of natural ropes long enough to be suspended from trees over a creek about two hundred feet wide. Perhaps a yard separated them, and they were parallel to each other. When anchored to the trees at a height of four or five feet above the bank, they form the upper part or parapet of the —

MAN AS THE MIMIC OF NATURE 149 bridge. As for the footway, its bearers were saplings young trees from ten to twelve feet long and three or four

inches in diameter ; they were lashed together into a continuous runner, and two such runners were laid from the banksides over the creek, to carry a hurdle pathway of canes or sticks. Then the upper part of the bridge was braced to the saplings with thin vines, which were tied to their supports at intervals of about a foot, and which served the purpose of suspension rods, for they counteracted the strain on the saplings when a native crossed the narrow footway. It would be easy to write much more about primitive swing bridges, but enough has been said to stimulate thought and discussion. Not one of them has a brighter intelligence than that which we find in many prehistoric handicrafts. VIII

NATURAL ARCHES—THEIR SIGNIFICANCE AND THEIR INFLUENCE LONG before the germ of humanity in some anthropomorphous apes became slowly fertile in a mysterious ^ gestation, Nature had weathered many rocks into hollowed and vaulted shapes. Some were yawning sea- caves, whose arched mouths gulped in the tidal waves, and whose caverned bodies gurgled or boomed with the noise of deepening water.* Others were vaults gradually fretted into being by subterranean torrents, such as we find to-day at Saint-Pons, in the Cevennes, where the river Jaur is nourished by an abundant spring which in a second, through the mouth of a low-arched cavern, pours a thousand litres of fresh, sweet water. Others, again, were genuine arched bridges, such as we find to-day in the Pont d'Arc, over the river Ard^che (p. 6). In England we have several such

* Such caves are frequent on the coast of Pembroke, in the Little England beyond Wales. Lydstep Arch is a far-famed example, and the Devil's Punch Bowl, opened within the area of a prehistoric camp by the falling in of the roof, has an archway to the sea. " Bocherston Mere is a very small aperture, which, like a widening funnel, spreads out below into a large cavern. During the prevalence of gales from the south-west, the sea, driven by wind and tide in at the arched entrance, is ejected through the upper hole in jets of foam and spray some forty or fifty feet high, like geyser spouts. The limestone naturally pierced with caverns lends itself to be thus riddled and rent."—S. Baring-Gould, "Book of South Wales,'' p. 196. ISO MAN AS THE MIMIC OF NATURE 151 bridges, notably the Durdle Door on the coast at Lulworth, whose arched span must owe at least a part of its shape to the troubled action of sea-waves. " La Roche Perc^e " at Biarritz—a crinkled, lava-like formation—is inferior to our " Durdle Door ; and La Roche Troupe," near Saint-Gilles Croix-de-Vie, though remarkable as a square-headed aper-

ture, has a lower place still in the pontine work done by- Nature.* Perhaps the most wonderful rock-bridges are those at Icononzo, in New Grenada, over the torrent of Summa- Paz. There are two, and one of them soars up and up to a crown that spans the water at an altitude of ninety-seven metres. How could men of genius fail to be architects when Nature set before their eyes great vaults, not only

varied in shape, but at times of a stupendous height ? In different ways she produced surbased arches, pointed arches,

semicircular arches, all more or less ragged in their out- lines, but each a model for progressive mimicry and adaptation.

Here is not the place to dally with the causes of their formation, such as uneven weathering and the scour of running water subject to high tides or to terrific floods. As rivers in the course of many ages deepen and widen their channels, they reach now and then a strata of fissured

rock, and their eating action is very rapid when they are

* There is no need to multiply examples, for every reader must have seen how rocks have been vaulted, and lands tunnelled, by underground rivers. At one part of her coursej for example, the Guadiana flows underground for twenty miles, forming a vast bridge above which 100,000 sheep can pasture. 152 A BOOK OF BRIDGES able to undercut the softer rocks by fretting their way along apertures or crevices. Many an earthquake has liiade such inlets for river water, and earthquakes may have shattered some rocks into vaulted shapes. Whether glaciers have played a part in the hollowing of rocks into arched caves and bridges I do not know ; but rock-basins are attributed to the erosive power of glaciers, so why not some rock- bridges also ? It is a question over which geologists ought to quarrel as they did over rock-basins.*

But the main point is that the archways made by Nature not only suggested the arched bridge of handicraft, but heralded all the lovely styles of building which have used vaults, domes, turrets, towers, spires, steeples, and arched openings—gateways, porches, and windows. There is a rival art, as we know, an art which has glorified the long lintel-stone carried by pillars ; but it has never won from the genius of great men the highest technical inspiration. To it we owe much work of a noble dignity, but in the powerful aspiration of this work there is but little upward flight ; it is not near at once

* When the glacial theory of their formation was young and argumentative it encountered at first a sneering opposition from Sir Roderick Murchison, the famous geologist, who in 1864 wrote as follows to Sir William Denison : "In my anniversary address to the Geological Society you would see the pains I have taken to moderate the icemen, who would excavate all the rock-basins by glaciers eating " their way into solid rocks. " But he failed to moderate the icemen " ; and Sir Roderick himself, a few years before his death, gave what is called " a tardy acquiescence " to their evidence. He became a frigid iceman. As Dr. Robert Munro has said, evidence which may be clear and convincing to one trained mind may not have the same effect on another—a fact which should at least warn us to be tolerant in matters of opinion. n^im-'M^^Ht

PONTE BELLA PAGLIA AT VENICE, RENAISSANCE

MAN AS THE MIMIC OF NATURE 153

to the point of heaven and the point of home. In fact, its masterpieces weigh down heavily on the earth instead

of rising towards the light. Not till we come to genuine arcMtecture—to the art that employs arches and vaults and domes—do we find united in the same edifice a majestic weight and a buoyant fervour. This union of qualities may be found in a supreme Roman bridge,

such as the Puente Trajan at Alcantara, but it reigns most beautifully in a Gothic cathedral, whose bulk, earth-bound and vast, has in it what Goethe defined as a petrified music, lofty and spiritual. Rome built for man and the ages, while Gothic art has a symphonic ardour expressed in a creed of hope that transcends all terrene things. The work done by Nature in various archways, some pointed and many round-headed, is a surprise to many persons. Yet Nature's custom is to build in curves and circles, as in the trunks of trees, and the shapes of flowers, and the forms of birds' nests. She hates angles, and particularly right angles ; these she makes in her moods of violence, when she flashes into zigzag lightning, or splinters trees and rocks with an earthquake. We ourselves are accustomed from early youth to squared shapes in handicraft, y^t our actions often speak to us of mankind's primitive fondness for circular huts and round pit-dwellings. We find it difficult to walk forward in a straight line, the steps we take having a tendency to curve; and untaught boxers never hit straight from the shoulder, their arms swing in 154 A BOOK OF BRIDGES segments of a circle. Art students, again, begin by drawing "too round," so they have to be shown how "to square their touch." Are you tempted to believe that the spinning of our globe has transmitted to all living things the routine of its movement ?

In any case, let us keep well in mind the different symbolism implied by curves, angles, straight lines, and circles. Squares and oblongs denote repose and weight, while circles and curved lines are identified with everything in the universe that denotes life, mystery, intelligence, fertility, light and heat, movement and speed, and space illimitable. Human progress itself is a circular ascent along the finest spiral lines, for civilization as a whole never comes back to the same conditions, but creeps above them to some trivial extent. The greatest circular or rounded shapes are the sun, the full moon, our own little world, the human skull, and the human heart; eggs, flowers, nests, the shapes of bones, and the wheel, without which dilatory progress would have been far and away too pedestrian. The first wheel was a rolling stone ; afterwards men noticed that a log touched by accident on a hill rolled down for some distance ; and at last a person of genius cut solid sections from a tree-trunk and made the earliest wheel of handicraft. Just one more point ought to be noticed with sympa- thetic care : that arches in art are more suggestive than circles ; they have the mystery of a beautiful part taken from a whole—a whole that looks methodical. We feel this mystery whenever we watch how the moon grows from MAN AS THE MIMIC OF NATURE 155 a silver crescent into a radiant circle. A thing complete dulls an attention that looks on, whereas growth or the suggestion of growth has the stimulus of hope and faith.

To culminate is to begin a decline. Even the circle of the sun would be tiresome but for the grey days that renew a truism into a gracious truth. This explains why arches in art make an appeal to the imagination that circles never equal. For example, wheel-windows in Gothic architecture never have the magic of pointed windows. Our eyes travel around them and cannot escape in a flight upwards. Nature, then, when she produced arches, brought into the world a very noble inspiration, and therefore very remote from the dull and slow mimicry of mankind. In fact, the earliest known vaults of handicraft have but a trivial age in the vast antiquity of human life. Let us take a rapid glance at them, so as to note their rudimentary construction. They are built not with stones directed towards the intrados, but with stones in horizontal courses that jut out one beyond another, just as Nature's archways in stratified rocks have a succession of layers. At Abydos, one of the most ancient cities of Upper Egypt, there is a vault of this primitive sort in the temple of Rameses the Second, who reigned for sixty-seven years, from about 1292 to about 1225 B.C.* Another is found at Thebes in the temple of Ammon-Re, but the most ancient specimen of all is at Gizeh, in the great pyramid of Menkaura. Now Men-

* Dates in Egyptian history are obscure, but these give the period approxi- mately. 156 A BOOK OF BRIDGES kaura belonged to the Fourth Dynasty, so that his date is more than 3000 years B.C. His sepulchral chamber is ceiled with a pointed arch—not a true arch, of course, the stones being merely cantilevers opposite to each other, with their undersides cut to the pointed shape. To understand the structural method, close your hands together at their full length, then open them gradually into the form of a pointed arch : the united finger-tips represent the apex of the vault, and the curving fingers represent the long archstones.

Here is a departure from the horizontal layers of stone, but with these also pointed arches have been built. For instance, Italy has a very good example at Arpino, in Campania. "Arpino occupies the lower part of the site of the ancient Volscian town of Arpinum, which was finally taken from the Samnites by the Romans in 305 B.C. . . . The ancient polygonal walls, which are still finely preserved, are among the best in Italy. They are built of blocks of pudding-stone, originally well jointed, but now much weathered. They stand free in places to a height of eleven feet, and are about seven feet wide at the top. A single line of wall, with mediaeval round towers at intervals, runs on the north side from the present town to Civita Vecchia, on the site of the ancient citadel. Here is the Porta dell' Arco, a gate of the old wall, with an aperture fifteen feet high, formed by the gradual inclina- tion of the two sides towards each other."* This ancient gate has a pointed arch ; it belongs to the

* "Encyclopaedia Britannica," nth edition, article "Arpino." MAN AS THE MIMIC OF NATURE 157 so-called " Cyclopean style." Sir William Smith gives an illustration of the Porta dell' Arco, and refers to " the very singular construction," in which successive courses of stone

" project over each other till they meet, so as to form a kind of pointed arch." Yet the construction is in no respect very singular, being the simplest way in which rude arches can be copied from Nature's models. With toy bricks of wood a child can build a Porta dell' Arco.* On the other hand, art and science go together in the building of an arch with voussoirs and keystones. A long evolution separates this workmanship from the gateways at Arpino and Tiryns and

Mycenae, though we cannot follow it through its gradual improvements. It is an evolution with many breaks, many

related forms having perished ; but experts note a difference between the Porta dell' Arco at Arpino and similar vaults both at Mycenae and at Tiryns, where the craftsmanship dates from the Heroic Age in Greece.

The main entrance at Mycenae is called the Lion Gate,

from the famed triangular arch and relief above its huge lintel-stone. The arch belongs to the method of laying stones in horizontal courses that jut out towards each

* M. Degrand, in his " Fonts en Magonnerie,'' draws attention to the fact that arches of this elementary sort have been discovered in Mexico where they represent a dead civilization to which no date can be assigned. Degrand draws his information " from two books ; Histoire du Royaume de Quito," par Don Juan de Velasco, Paris, 1840, and " Monuments anciens du Mexique," par de Waldeck et Brasseur de Bour- bourg, Paris, 1866. At Palanque, in a building supposed to be a temple of the sun, a large bay that opens into the sanctuary has an elliptic arch formed with courses " of dressed stone that project one beyond the other : un arc surbaissiformi d'assises de pierres de taille posies avec une forte saillie les unes par rapport aux autres," 158 A BOOK OF BRIDGES

other across an opening ; and the decorative sculpture

represents two lions that stand face to face ; they are separated by a pillar and their front legs rest on a low altar-like structure that supports the pillar. The same device occurs in cut gems and in goldsmith's work of

the Mycenaean age ; and the lions recall to memory those with which some Chinese bridges have been ennobled

(pp. 127, 311). Even more remarkable are the beehive tombs at

Mycenae ; there are eight in all, and some others are found in the neighbourhood. Pausanias regarded them as the places where Atreus and his sons hid their treasures, but now they are looked upon as the tombs of princely families. The most important of them, just outside the Lion Gate, is called the Treasury of Atreus. It has two rooms, a square one cut in the rock, and a

round one with a pointed dome. This chamber is fifty

feet in height and in diameter ; we go to it along a horizontal passage twenty feet wide and a hundred and fifteen feet long, with side walls of squared stone sloping up to a height of forty-five feet. "The doorway was flanked with columns of alabaster, with rich spiral

ornament, now in the British Museum ; and the rest of the facade was very richly decorated, as may be seen from Chipiez's fine restoration. The inside of the vault was ornamented with attached bronze ornaments, but not, as is sometimes stated, entirely lined with bronze. It is generally supposed that these tombs, as well as those MAN AS THE MIMIC OF NATURE 159 excavated in the rock, belong to a later date than the shaft tombs on the Acropolis."* In the Treasury of Atreus there are two points that interest architects more than any others. The first is the contrast between admirable decoration and hugely primitive

stonework ; and the other is the fact that the annulary courses forming the domed and circular chamber have this particular character, that the lateral joints of the stones

hardly tend at all towards the centre. Moreover, again and again the stones are separated by a space, and this

interval is filled up with small rubble which seems to have been pressed together with the greatest care. These irregular courses, whose inside diameter grows less and less as the circular wall grows higher and higher, forms at last a sort of pointed dome over the great tomb.

M. Degrand says very well : "A vault of these proportions must count as a memorable work. Its construction here

and there makes use of colossal stones, and it subsists almost intact after more than thirty centuries of existence. At a pinch its architect and workmen could have erected some masonry bridges in accord with the same technical method." In wide arches of this sort the resistance of good mortars would have been called upon to play the lead-

ing part ; but in arches of narrow span the stones could

* "Encyclopaedia Britannica," article "Mycenae"; see also Sir William Smith, " Dictionary of Greek and Roman Geography " ; and note what M. Degrand says in his " Fonts en Magonnerie." i6o A BOOK OF BRIDGES

have been used dry, and such arches may well have displaced many a primitive footway of logs that rested on stone piers. The Egyptians built some real arches, not with long stones carefully shaped into segments of a circle, such as

we find in some Chinese bridges (pp. 313-14), but with hewn blocks whose joints converged toward a common centre. In Ethiopia, for example, in one of the pyramids of Meroe,

there is a semicircular arch composed of voussoirs ; and two pyramids at Gebel Barkel have arched porticoes with voussoirs that tend to one point. Their shapes differ, one arch being pointed and the other round-headed.* The pyramids of Gebel Barkel are puny in style, and belong to a very late date in old Egyptian history. As we have seen, a triangular arch may be studied above the Lion Gate at Mycenae. Triangular arches are uncommon, but Brangwyn has chosen a good example of

a much later date from Kashmir. The builders found it easier to set up a triangular scaffold than a rounded one.

As for the semicircular arch, early examples of it have been discovered in Asia Minor, among the ruins of

Phrygian cities ; in Acarnania, the most westerly province

of ancient Greece ; and also in that part of Central Italy where the Etruscans, by their powerful civilization, heralded Rome. It was in Etruria that Rome cradled her infancy, for she borrowed from the Etruscans many of her building

* See E. Degrand, Vol. II, p. 124; and see also the "Traite d'Architecture," by Leonce Reynaud. MAN AS THE MIMIC OF NATURE i6i methods and many of her civil institutions, both religious and political. Among the gleanings that she harvested we find the round-headed arch, which became a symbol of Roman conquest and colonisation. Perhaps it was employed at Rome for the first time in those great sewers,

IN KASHMIR : A PRIMITIVE BRIDGE WITH TRIANGULAR ARCHES

extant still, which were attributed to the statesmanship of Lucumo Tarquinius, the legendary man of wealth who with his wife and retinue migrated in a splendid manner from Etruria and became a Roman citizen. If the sewers

were built about 600 years B.C., then the history of round- headed vaults, as Rome collected from many nations the M i62 A BOOK OF BRIDGES toll of enlightened obedience, extended over more than a thousand years. In the next chapter we shall try to understand the Roman genius, but here we must recall to mind two preliminary points ; one is the aboriginal arch of tree-trunks that Caesar found in Gaulish bridges (pp. 70, 72), the other is the fact that the Romans left in Britain a version of their round-headed arch that is simpler and more rustic than any other. It was copied frequently by mediaeval bridge- builders, and to-day many of the copies are known locally as Roman. Brangwyn represents one of these imitations in Harold's Bridge at Waltham Abbey.

Perhaps this bridge may date from Harold's time, but it

is a feeble thing in comparison with the Roman example near Colne, Clitheroe, whose simple and effective structure is bolder in aspect than the New Port at Lincoln, a genuine Roman gateway. There is but one arch in the Roman

bridge near Colne, and its voussoirs have no masonry above them, the footway being protected by large cobbles which are easy to displace when they become outworn. Perhaps the width of this bridge may have been great enough for

Roman wheels and British chariots, but I doubt if a coster with his cart would make the crossing. Along the ancient tracks of Lancashire there are many single-arch bridges with a Roman aspect, but without an authentic air of stalwart dignity. The one near Colne looks genuinely Roman, while the others speak to me of a Roman tradition enfeebled in much later times by a rather timid MAN AS THE MIMIC OF NATURE 163 craftsmanship. Mr. C. S. Sargisson has examined these bridges carefully, and from him I have received some excellent photographs.

A bridge belonging to the same school is to be found at

BRIDGE AT WALTHAM ABBEY ATTRIBUTED TO HAROLD

Monzie, near Crieff, in Perthshire ; there are several in North Wales, the best example being Pandy Old Bridge at

Bettws-y-Coed ; and a good English specimen, quite as entertaining as Harold's Bridge at Waltham, should be noted at Hayfield. Nothing can be simpler than this use i64 A BOOK OF BRIDGES

of a single rough ring of voussoirs ; and it justifies the inference that Roman pontists were niggardly in Britain, since they stereotyped a narrow bridge without parapets, and erected no tremendous aqueduct and no bridge of enduring fame, such as we find elsewhere in Europe. If Rome had foreseen the future history of Britain, and had given way to jealousy, she could not have been more parsimonious in her British bridge-building. SMYRNA : ROMAN BRIDGE AND AQUEDUCT—THE POINTED ARCHES ARE EASTERN RESTORATIONS

CHAPTER THE THIRD A FEW WORDS ON THE ROMAN GENIUS

I WHAT are we to think of the Roman bridges and aqueducts ? Are we to be men in our attitude

toward them ? or shall we try to see them with the unfriendly eyes of Grecian supermen ? It seems to me that many Grecian supermen are terrible persons in their criticism of architecture. Often they are so cocksure in their contempt for Roman art that they write down their verdicts without any thought, and also in

uncouth English, as if a slatternly habit of mind were a fit companion for their proclaimed belief in the supremacy of Greek masterpieces. Years ago, in the " Encyclopaedia Britannica," one of these superlative judges told the world that Roman bridges and aqueducts " were really of a more engineering than architectural character, being in the main utilitarian." What does this ungainly language mean? Was a Roman temple less utilitarian than a Roman aqueduct? less needful as a part of the national life? Why should a lover of Greek art write absurdly on the Roman

genius ? I am told, for instance, by another Grecian, that the Pont du Gard, a Roman masterpiece, three or four leagues from Ntmes, in France, has "rough masonry."

What next ? A very strong man, a Sandow,.in comparison with a Tom Thumb, is a man of rough muscle and sinew, 167 i68 A BOOK OF BRIDGES

and if Tom Thumb is to be our standard of symmetry and grace, then Sandow is a masterful error in proportion and vitality. To describe the Pont du Gard as " rough " is to

be a pigmy in a very foolish attitude to Roman power ; and

it proves also that the critic has a defective appreciation of his own vaunted hobby, the might and magnificence of Greek architecture. Does anyone know why British writers are reluctant to admire in art those virile gifts of the spirit that win victories

and promise a great future ? Why is it that our criticisms are honeyed with sweet phrases ? We prattle about " tender sentiment," and " exquisite refinement," and " gracious and

gentle tact," as if these female qualities only and alone could make fame permanent in the arena of the centuries.

Is a passion for " refinement " to turn us into valetudi-

narians ? Surely the Roman genius, in a supreme monument

such as the Pont du Gard, is the very tonic for which we ought to have an inborn care and liking? Yet some pro-

fessors of taste, being devotees of the epicene, condemn it as a " rough " genius, just as bad climbers revile the Alps.

When J. J. Rousseau visited the Pont du Gard he was awed into silence by the immensity of the three arcades.

For the first time in his life he understood the grandeur of the Roman spirit in adventurous achievement. " Le Pont du Gard," he wrote in his " Confessions," " 6tait le premier ouvrage des Romains que j'eusse vu. Je m'attendais a un monument digne des mains qui I'avaient construit pour le ; coup, I'objet passa mon attente, et ce fut la seule fois en ma A FEW WORDS ON THE ROMAN GENIUS 169 vie. II n'appartenait qu'aux Remains de produire cet effet. L'aspect de ce simple et noble ouvrage me frappa d'autant plus, qu'il est au milieu d'un desert 011 le silence et la solitude rendent I'objet plus frappant et I'admiration plus vive ; car ce pr^tendu pont n'dtait qu'un aqueduc. On se demande quelle force a transports ces pierres Snormes si loin de toute carri^re, et a rSuni les bras de tant de milliers

d'hommes dans un lieu oh il n'en habite aucun ? Je par- courus les trois Stages de ce superbe edifice,* que le respect m'empSchait presque d'oser fouler sous mes pieds. Le retentissement de mes pas sous ces immenses voiltes me faisait croire entendre la forte voix de ceux qui les avaient bities. Je me perdais comme un insecte dans cette immensity : je sentais, tout en me faisant petit, je ne sais quoi qui

' m'Slevait lame, et je me disais en soupirant : Que ne suis-

! je n6 Romain ' Je restai la plusieurs heures dans une distrait et contemplation ravissante ; je m'en revins r^veur, et cette reverie ne fut pas favorable a Mme. W . . . . EUe avait bien songS a me prSmunir contre les filles de

Montpellier, mais non pas contre le Pont du Gard ! On ne s'avise jamais de tout."

I give this quotation in the original French because the flavour of Rousseau cannot be translated. As well try to keep the flavour of champagne by mixing this wine with water. Besides, I wish to contrast the elusive vanity of

* If Rousseau walked along the three tiers of this bridge-aqueduct, then he had what climbers call " a good head," for there is but little space between the piers and a most unpleasant fall into the river Gardon. Most of us have passed over the top, leaving Alpinists to explore the rest of this wonderful structure. * —

I70 A BOOK OF BRIDGES

Rousseau with the alert and appealing manliness of Charles Kingsley, another ardent devotee of the— Pont du Card. In 1864 he wrote as follows to his wife : " My first impression of the Pont du Card was one of simple fear. ' It was so high that it was dreadful,' as Ezekiel says. Then I said, again and again, ' A great people and a strong. There hath been none like before them, nor shall be again for many generations.' As, after fifteen miles of the sea of mulberry, olive, and vine, dreary from its very artificial perfection, we turned the corner of the limestone glen, and over the deep blue rock-pool, saw that thing hanging between earth and heaven, the blue sky and green woods

showing through its bright yellow arches, and all to carry a

cubic yard of water to Nismes, twenty miles off, for public baths and sham sea-fights {naumachia) in the amphitheatre, which even Charlemagne, when he burnt the Moors out of

it, could not destroy!—Then I felt the brute greatness of

that Roman people ; and an awe fell upon me as it may have fallen on poor Croc, the Rook, king of the Alemans but that is a long story—when he came down and tried to destroy this city of the seven hills, and ended in being shown about in an iron cage as The Rook. But I doubt not when he and his wild Alemans came down to the Pont du Gard

they said it was the work of dwarfs—of the devil ? We walked up to the top, through groves of Ilex, Smilax, and

Coronella (the first time I have seen it growing), and then

* " Charles Kingsley : His Letters and Memories of his Life." Edited by his Wife. 1879. Vol. II, pp. 176-7. A FEW WORDS ON THE ROMAN GENIUS 171 we walked across on the top. The masonry is wonderful, and instead of employing the mountain limestone of the hills, they have brought the most splendid Bath oolite* from the hills opposite. There are the marks cut by the old fellows —horse-hoofs, hatchets, initials, etc., as fresh as paint. The Emperor (1864) has had it all repaired from the same quarries, stone for stone. Now, after 1600 years, they are going to bring the same water into Nismes by it. When we crossed, I was in a new world. Genista anglica, the prickly needle furze of our commons (rare with us), is in

great golden bushes ; and box, shrubby thyme, a wonderful blue lily, bee-orchis and asters, white, yellow, purple (which won't dry, for the leaves fall off). Then wild rosemary, and twenty more plants I never saw. We went below into a natural park of ilex and poplar (two or three sorts), and watched such butterflies and the bridge, till C said,

' This is too perfect to last,' which frightened me and made me pray. And there was reason—for such a day I never had in my life of beauty and wonder .... and yet there

* Sir William Smith, in his great " Dictionary of Greek and Roman Geography," gives a detailed account of the stonework. " The stone of this bridge is a yellowish colour. Seen under the sun from the west side, the bridge has a brightish yellow tint, with patches of dark colour, owing to the weather. The stone in the highest tier is a concretion of shells and sand, and that in the lower tiers appears to be the same. In the stones in the highest tier there are halves of a bivalve shell completely preserved. The stone also contains bits of rough quartzose rock, and many small rounded pebbles.

In floods the Gardon rises 30 ft. above its ordinary level, and the water will then pass under all the arches of the lowest tier. The piers of this tier show some marks of being worn by the water. But the bridge is still solid and strong, a magnificent monument of the grandeur of Roman conceptions, and of the boldness of their execution." 172 A BOOK OF BRIDGES is one thing more glorious and precious than the whole ." material universe—and that is a woman's love. . . A classic tradition says that the huge stones in the Pont

THE PONT DU CARD FROM ABOVE THE FIRST TIER ; SHOWING BELOW THE MODERN BRIDGE FOR GENERAL TRAFFIC OVER THE GARDON

du Gard were joined together by iron clamps. Is this true ?

Each iron clamp, if any were used by the masons, connected a voussoir to an interior archstone.* From time to time the Romans employed iron rods bent at the ends and

* Later we shall see that Perronet, a famous bridge-builder of the eighteenth century, used iron clamps for this purpose. A FEW WORDS ON THE ROMAN GENIUS 173

fastened into stones with molten lead ; such rods have been discovered among the ruins of a Roman bridge over the North Tyne, at ChoUerford, near Hexham. This was a bridge with a wooden superstructure, probably, as no voussoir has been found among the litter of pier-stones.

The Pont du Gard is very tall ; it soars, and to a height that exceeds forty-seven metres. The first tier has six arches, the second has eleven, the third has thirty-five. In the middle tier the length is 257 m. 90 cm.

Note, too, that the architectural centre of the design is

determined by the rocky channel of the Garden ; we find

it not in the centre of the bridge but on the north in the

arch under which the river flows. It is the biggest arch of

all, with a span of 25 m. 30 cm., while the neighbour on each side is narrower by nearly six metres. The other bays of the first arcade dwindle in span to 15 m. 75 cm.* As to the

centre of the second tier, it corresponds with that of the

first, for the largest vault is above the river ; it carries four

little arches of the third arcade, while its companions support only three. Some critics see nothing more than the

unequal size of these arcades, when the real point is to find the architectural centre, whence the composition radi- ates, majestic and imperious. The topmost arches and their crowning dignify the whole structure with a complete-

ness akin to that which is given to a long range of columns by a fine entablature and cornice.

* I believe these measurements to be strictly accurate, unlike those in many books of reference. 174 A BOOK OF BRIDGES

And we must note the symbol of prosperity—a phallus —carved twice in low-relief on the Pont du Gard. On the western side it graces a springing voussoir in the third

arch of the second tier; and there is another on the keystone of the greatest arch, where the river passes. Here the em-

blem is a double phallus, and when it is touched by sunlight

it looks as young as hope, not as uncertain as prosperity. We cannot put a date on this Roman masterpiece, because in this matter there are differences of opinion. M. Mdnard, historian of Nimes, attributes the work to Agrippa, son-in-

law of Augustus, who is said to have ordered its construction about nineteen years before the Birth of Christ. The architecture belongs to the Tuscan order. Its vaults are semicircular, and spring from ledges, or imposts, about 50 centimetres high, and as much in projection. There are four

parallel rings of stone in the vaults of the first tier, and three in the second, while the third tier has either one or two. This Roman method of building the under surface of an arch, by laying stones in parallel bands or rings, side by side, but not bonded together, was copied in the Middle

Ages (p. 82). One point more : the water channel of the aqueduct, placed on top of the third arcade, is i m. 30 cm. wide

I and m. 60 cm. high ; it is nearly blocked up with a thick deposit of lime, but when this substance is detached we find on the side walls a deep layer of cement coloured red. The bed of this channel is a solid floor, 22 cm. in thickness, and its component parts are small pebbles mixed with lime and gritty sand. A FEW WORDS ON THE ROMAN GENIUS 175

Like other antique monuments, the Pont du Gard has been ravaged by the brutality of mankind. At the end of the seventeenth century, for instance, during years of religious warfare, so called, the Pont du Gard was often crowded with fugitives and with troops, who made a footway for themselves along the upstream side above the first arcade by means of a strong platform corbelled out from new imposts. Over this road cavalry and artillery passed at full speed, not only shaking the bridge, but causing the

topmost tier to develop a curve which is still noticeable. At last the province of Languedoc interfered, and in 1670 careful restoration was begun.

Years later, in 1 743, the ^tats g^neraux decided that a good highway should be built up against the eastern side of the Pont du Gard; and this new bridge, finished in 1747, was perhaps justified by its utility, though it harmed a classic monument. There have been a good many modern restorations, and one day the aqueduct itself may be brought into use again, in accordance with the wishes expressed by a great many persons.*

Let me add to this account a few details from Sir William Smith's " Dictionary of Greek and Roman Geography." " It is generally said that the bridge is entirely built of stones, without mortar or cement. The stones of the two lower tiers are without

cement ; but the arches of the highest tier, which are built of much smaller stones, are cemented. At the north end of the aqueduct the highest tier of arches and the water channel are higher than the ground on which the aqueduct abuts, and there must

have been a continuation of small arches along the top of this hill ; but there are no traces of them, at least near the bridge. On the opposite or south side the aqueduct abuts against the hill, which is higher than the level of the channel. There is no trace

of the hill having been pierced ; and an intelligent man, who lives near the bridge,

says that the aqueduct was carried round the hill, and that it pierced another hill ," further on, where the tunnel still exists. . . II

FRANCE happens to be rich in fine relics of Roman bridge-building. Among her antique monuments there are remains of three aqueducts, at Frfejus and

Lyon and Luynes ; and every pontist has seen photographs of the aqueduct at Lambese, in the department of Constan- tine, Algeria. At Vaison, in Vaucluse, over the river Ouvfeze, we find an important Roman bridge, built on two rocks, with a single arch not less than thirty metres in

span ; and along one embankment is a range of tall and narrow arches that start out from the abutment of the bridge. The Pont de Vaison is not in all respects represen- tative of the best Roman work, for its voussoirs, instead of being rimmed and extra-dossed, are fitted into the spandrils

(p. 282). I do not know the date of this bridge, but Vaison descends from a famous Roman town, Vasio by name,

mentioned by Mela (ii. 5) as one of the richest towns of the Narbonensis. It is common knowledge—or it should be—that the Romans adorned some of their bridges with a triumphal arch ; and it happens, by rare good fortune, that France owns a small example of this Roman pride. It is the Pont Flavien at Saint-Chamas, which in a single arch, forty-two feet wide, spans the rocky bed of the Touloubre. At each 176 A FEW WORDS ON THE ROMAN GENIUS 177 entrance there is a triumphal arch seven metres high, flanked at each side by two Corinthian pilasters, upon the summit of which the entablature rests. There is a stone

lion at each extremity of the entablature ; it stands rampant and looks out into the open country, as if to symbolise for ever the wakeful power of Roman thoroughness. Only

one of the four lions belongs to Roman workmanship ; the others are much younger, and their proportions are bigger.

This bridge, again, which I believe to be unique, bears an

inscription, from which we learn that it was founded by a certain L. Donnius Flavus, a flamen of Rome and of Augustus. But the name Augustus was a title of veneration given by custom to all the Caesars, so that Donnius Flavus and his bridge have uncertain dates. And now we wjll take a devious walk along some Roman roads through Gard-Hdrault, to see what we shall find in the way of antique bridges. From north-east to south-west

the region is crossed by the Via Domitiana, which runs from Lyons to the Pyrenees, going over the Rhdne at Aries, and passing by Nimes, Pont Ambroise, Substantion, Saint- Thib^ry, Bdziers, and Narbonne. At Pont Ambroise the river Vidourle is partly spanned by the ruins of a very

picturesque Roman bridge, but its points of interest belong

to an earlier chapter (p. 82). Near Castelnau, or Substantion, the Via Domitiana crossed the river Lez by a bridge now

wholly destroyed ; its abutments can be seen when the water is low, but they add nothing to our knowledge of Roman masonry. In mediaeval times this bridge was called lyS A BOOK OF BRIDGES

the Pont Lairou, Lero being the Latin name of the river Lez. Not far from Saint-Thib^ry the Via passed over the H^rault at that point where, in the seventeenth century

(about the year 1678), the river was split into halves by

a great flood, which formed the lie des Benedictins ; the

Roman bridge is on the western branch of this divided river. Four arches exist, but originally there were nine, with spans ranging from ten to twelve metres. The piers have cutwaters both upstream and downstream, with circular bays nearly two metres high for the relief of spate water. The facing stones are long, and the filling is local volcanic rubble. This bridge was wrecked by a flood before the year 1536. The Via Domitiana was carried over the Orb, and then,

following the ancient road of Colombiers, it crossed the Capestang by a Roman viaduct called the Pons Selmis or Pontserme, which in 1430 was repaired with 500 quarters of stone 2| pans long by i^ pans thick and wide. It was

a tremendous viaduct, its length being 1500 metres ; the width did not exceed three metres. In the sixteenth

century it fell in for want of repair. At the present time only an isolated arch remains, with fragments of two others. In a document of a.d. 782 this bridge is called Pons Septimus.

Another Roman road left Nimes in the direction of

Larzac, and near Lod^ve apparently it joined the ancient

road from Saint-Thibery to Millau ; at Sommi^res it crossed A FEW WORDS ON THE ROMAN GENIUS 179 the Vidourle by a magnificent Roman bridge which had no fewer than seventeen arches. To-day only eight arches are visible, the others having been buried under a great accumu- lation of soil on both banks.* Yet the Pont de Sommi^res, though deprived of nine arches, has a high place among the Roman monuments. I have now to mention a Roman byway that branched out from the main road on the right bank of the Vidourle, at a little distance from Sommi^res ; it ran toward Sub- stantion, passing by Castries and joining the Via Domitiana near Vendargues. At Boisseron it crossed the river Benovie, a small tributary of the Vidourle, by a bridge which to-day is extant, though disfigured by modern work. It has a shelving parapet and road, but we cannot describe it as a gabled bridge (p. 27). There are five arches of unequal size, the piers on the upstream side have cutwaters, and rectangular bays above the cutwaters ease the pressure of floods. Frank Brang^yn has drawn for us the wreck of a Roman bridge over the Loire, at Brives-Charensac, in the neighbourhood of Puy ; and the big arch, which springs from water-level, is particularly interesting because it has a

double ring of voussoirs. The smaller arch belongs to the .

Middle Ages, for it has a pointed shape. We pass on to Spain, which has been called the land

* See Grangent, Durand et Durant, " Description des Monumens Antiques du

Midi de la France," Paris, 1819, I, p. 113, and Plate XL; see also "Geographic Generale du Departement de I'Hdrault," published by the Societe Languedocienne,

Montpellier, 1905. Vol. Ill, part ii. p. 310. i8o A BOOK OF BRIDGES of bridges and aqueducts. A pontist, may live there for many years and be happy all the time. Even a hurried author, who visits the antiquity of Spain as a mere journalist, and who mimics vainly the travel books of Alexandre Dumas, finds that the many bridges put some thoroughness into his

RUINS OF A ROMAN BRIDGE OVER THE LOIRE AT BRIVES-CHARENSAC, FRANCE own work, acting as a drag on the far-sought and dear- bought liveliness with which the million may be charmed. There is the case of S. R. Crockett, who was commissioned to be lively and daring among the Spaniards, so he published in 1903 "The Adventurer in Spain," a poor copy both of Borrow and of Dumas. "I would like to write — —

A FEW WORDS ON THE ROMAN GENIUS i8i a book—copiously illustrated—upon Spanish bridges alone," he told his readers in a moment of zeal, adding briskly,

" that is, if I thought anybody could be found to buy it." In one passage thought and enthusiasm very nearly broke

loose from the discipline of "a popular style" :

" Many bridges, too, there were—wonderful in a country where, as in Spain, there are neither roads to travel upon

nor waters to cross—nor even, it may be added, travellers to cross them. Yet in our first hour we had passed, we five apprentice Carlists, at least as many admirable bridges clean-shaped, practical, suited to the place and to the land-

scape as a becoming dress fits a pretty woman. This is

a rare thing in bridges, and one which is almost never to

be found in new countries, where a bridge is invariably an outrage upon the surrounding scenery. Queer bridges we found—triangular bridges, unnecessary bridges, of wood and stone and straw and stubble—but never ugly bridges."

Mr. Crockett did not understand the rivers of Spain, many of which after a storm leap from their dry beds into raging torrents, and give rough-and-tumble lessons to bridge-builders. From Roman times to our own, these freakish waterways have inspired noble work, that cannot well be rated at too high a level. At M^rida alone a pontist can dream over the past for several months, not only studying the remains of three Roman aqueducts, upon which storks hold their parliaments, but making friends with two Roman bridges, one of which puts the Roman genius in —

i82 A BOOK OF BRIDGES

scale with the Guadiana. It is a huge structure, not less than 780 metres in length, with sixty-four arches of granite. Books of reference mention eighty-one arches, but this number includes the relief bays for floods tunnelled through the piers above the cutwaters. Some writers believe that the greater bridge at Merida was built under Trajan, while

others give it to Augustus, who founded M6rida as a home of rest for the veteran soldiers of his last campaign. In 686

the Visigoths restored this bridge ; in 1610 it was repaired

by Philip III ; in 18 12, during the siege of Badajoz, seventeen of the arches were wrecked in order to close the river. At the northern end we find a Roman castle, now in ruins, so we are able to study a battle-bridge dating from those times when Rome turned wars into colonies.

The Roman bridges of Spain may be divided into five

classes :

1. Those which are low and many-arched, as at Mdrida and Salamanca.

2. Those which have two or three arches with shelving parapets and roads, as at Alcantarilla* and also near Villa del Rio;t

* Two arches over the Salado river, some thirty miles below Seville (p. 367). + Between Cordova and Andujar, over a small tributary flowing into the Guadal- quivir from the south. This bridge has three arches, one a good deal larger than the others bays are driven through ; the spandrils for spate water to pass through. The masonry consists of stone in big blocks, and the craftsmanship has a very peculiar feature the voussoirs are notched : or joggled one into the other, like those in the Elizabethan bridge at Ross-on-Wye, Herefordshire. This technique is a thing to be remembered it occurs in no other : Roman bridge that is known to me. The notch- ing adds much to the endurance of an arch ring, yet [it has never entered into the ;

A FEW WORDS ON THE ROMAN GENIUS 183

3. One or two with a single arch, as at Ronda

4. Several in which Roman and Moorish masonry are combined, as at Cordova ; and

5. There is one Roman bridge so lofty that its parapet is separated from the river-bed by a distance of more than fifty-nine metres. I refer to the famous Puente Trajan over "the melancholy Tagus" at Alcdntara. This herculean

masterpiece has six arches, his length is a hundred and

eighty-eight metres, and the roadway is eight metres wide and quite level. A triumphal archway thirteen metres high

stands in the middle, but I regard its Roman origin as

doubtful, as the design is not quite in scale with the majesty of the bridge.

Who can say how many writers have tried to describe the Puente Trajan? No description can summon up before the mind an image of his marvellous power and nobility, for these qualities produce a feeling of awe and take from us the wish to write. That he came from an architect and was put together by common masons, huge stone after huge stone, is a fact very hard to believe, as only two things in this

bridge mark the littleness of man : one is the archway, that fails to triumph with a Roman spirit, and the other is ah arch of modern workmanship. Everything else recalls to

my mind a good saying that fell from Marshal Ney when

technical routine of bridge-builders. Perhaps the dovetailing of the stones has been

looked upon as too costly, for it needs much skill and care and time. Mr. Edgar Wigram drew my attention to this little-known Roman bridge, and to the one at

Alcantarilla (p. 367). i84 A BOOK OF BRIDGES

he noticed in the aqueduct of Segovia the startling dififer- ence between the craft of modern masons and the ancient Roman art in thorough construction. In the fifteenth century some vaults of the Segovian aqueduct were destroyed by wars, and Isabella the Catholic had them rebuilt in the most careful manner. Yet the work was not careful enough, for in less than three hundred years the reconstruction had to be renewed, while the Roman art remained youthful and immovable. In 1808 Marshal Ney was greatly impressed by these facts, and, pointing to the " first arch of the modern portion, he said : C'est ici que

commence le travail des hommes." Even the people of

Segovia feel that their soaring aqueduct has in it something far beyond their reach, something grand enough to be called superhuman. Custom has deadened their admiration, of

course, has enabled them even to build silly little houses amid the shadows thrown by their antique monument; but yet they doubt the human origin of such perfect masonry

and give it to the Evil One, who comforts himself with

a tremendous deed of architecture whenever he is greatly bored by the feeble gullibility of mankind.

Nothing is more difficult than to express in words this unhuman character of the best Roman bridges, which reveal eternal manhood and courage in the work done by the men of a day. For instance, here is the Alcantara over the rocky gorge of the Tagus. He was erected for Trajan by Caius Julius Lacer; and we know that Lacer was buried quite close to his bridge, and that his tomb remains on the left THE ROMAN AQUEDUCT AT SEGOVIA IN SPAIN, WITH MODERN HOUSES CLUSTERED AROUND ITS BASF.

A FEW WORDS ON THE ROMAN GENIUS 185 bank. These facts are trite and tame, but when we turn from them to the supreme bridge we pass from bald history into a creation that seems miraculous.

"It is long before the eye can learn to grasp his* full all dimensions ; around him is rock and mountain, there is nothing to give scale. We are warned of this ... by the camera, for the lens will not look at so wide an angle. . . . Presently, as we peer over the parapet into the depths of the gulf below us, we realise that there is a man down there walking by the waterside, with a dog that seems to bark though we cannot hear the sound. Slowly our eyes measure the voussoir above which we are standing; it is a twelve-ton

block of granite ; and the huge vault with its eighty such voussoirs seems to widen and deepen beneath us as we

gaze ; for the brook that it spans is the river Tagus, whose waters have their source three hundred miles away. "Thus hint by hint we have pieced together the astonishing conclusion that the span of each of the two

great central arches is rather wider . . . than the interior of the dome of St. Paul's ; and that the height of the railway lines above the Firth of Forth is twenty feet less than that of the road above the Tagus ! What must the scene be like in winter, when the waters are foaming against the springer stones one hundred and forty feet above their massive summer level ! How vast the strength of these piers which for eighteen hundred years have defied the fury of the floods

* This bridge is a soldier, and claims masculine pronouns. —

i86 A BOOK OF BRIDGES

"Where now is the great Via Lata that ran from

Gades to Rome? Where are the famous cities which it threaded on the way? The vine and olive grow in the forum of Italica, and the Miracles of M^rida are a dwelling for the stork. But here at the wildest point of all its wild journey our eyes may still behold a memorial which nature

' has assailed in vain : Pontem perpetui mansurum in

saecula mundi ; the monument of Caius Julius Lacer, ' — more enduring even than Wren's." * Many persons believe that Wellington's troops, in 1809, blew up one of the smaller arches, but this is untrue. The history of the ruined arch has been given by Larousse. It was cut on two occasions. In 12 13 the Saracens

destroyed it, and Charles the Fifth rebuilt it in 1543. Two hundred and sixty-five years passed, and then the French in 1808 were compelled by the policy of war to

wreck the same arch, and I have already described how Wellington bridged the gap with a netting of ropes a suspension bridge of ships' cables—covered with planks

(p. 16). This temporary work was displaced by a wooden

arch, which in 18 18 was burnt down ; and between this date and the Carlist wars no restoration seems to have been attempted. "The Spaniards were long content with a ferry," says Mr. Wigram. But now they have renewed the arch " in its native granite, a feat of which they are justly

proud. Only, seeing that no cement at all was used in the

original building, it was really a little too bad of them to

* " Northern Spain," by Edgar T. A. Wigram, London, 1906, pp. 231-2. A FEW WORDS ON THE ROMAN GENIUS 187

! insist upon pointing all the joints " True the ; but workmen were modern, not Roman, and it was humility on their part to advertise their cement, their most evident strength.

THE BRIDGE AT ZARAG02A, PARTLY ROMAN

The Moorish words Al Kdntarah mean the bridge, and we know that the Titanic masterpiece of Julius Lacer has but few rivals. Let us put it side by side with the most stately bridges at Isfahan in Persia, whose august charm is not so masculine (p. 268) ; then we do honour to the finest pontine architecture in the world. The Alcantara is a King, i88 A BOOK OF BRIDGES a Caesar, while the two Persian achievements are Amazon Queens.

Several bridges in Spain have the honorary title of being Roman, either because they exhibit a combination of Roman and Moorish masonry like the sixteen-arched example at Cdrdova, or because they may have in them some Roman workmanship, like the Puente de Piedra over the Ebro at Zaragoza, which has seven arches and six very massive piers, far too ungainly to be Roman. Indeed this bridge

dates from 1437, but it was built on a classical site, and on Roman foundations. Some houses give interest to the upstream side of the piers, but their roofs do not rise above the level of the parapet.

As for the bridge over the Guadalquivir at Cordova, it is more Moorish than Roman, for most of the Roman arches were destroyed by the eighth century, and they were reconstructed by the Arabs, who established themselves at Cordova in 711. Recently this bridge has been so much

repaired that it looks almost new. A big tower, very Moorish in style, the Calahorra, keeps guard at the end

remote from the town ; and the city entrance has a worn classic gateway and an elevated statue of Saint Raphael, the patron saint of Cordova. 1 >• (X fe

Ill

FEW remarks must be made on the technique of Roman bridges and aqueducts. Vitruvius men- AL tions a method known as opus quadratum in which stones were put in regular courses of headers* and

stretchers! ; they were big stones, about two feet by four feet and two feet high, as in the Marcian Aqueduct dating from B.C. 145. t Each stone was bordered with a draft cut one and a half inches wide, and the middle surface was roughed with a pick. This technique may be studied in the aqueducts at Segovia and Tarragona. The arches were set back at their springing behind the imposts, leaving ledges upon which the scaffolds rested. Not all the Roman aqueducts were of stone. The one after Nero was in brickwork of the finest named kind ; and

* The stones laid end-foremost. t The stones laid at full length.

X There is conflicting evidence on the date of this monument. Pliny attributed the Marcian Aqueduct to Ancus Marcius, whereas Strabo and Frontinus conjecture that the building got its name from Marcius Rex^ a pretor, who in the year b.c. 145, or thereabouts, restored some ancient aqueducts whose first construction did not go back beyond the year 272 b.c. Sextus Julius Frontinus, governor of Britain (a.d. 75- 78), was the author of two monographs that are still extant—one on the Roman aqueducts, and another on the art of war. He was nominated Curator Aquarum, or Superintendent of the Aqueducts, in 97, nine years before his death. Sir William Smith tells us that the earliest aqueduct was not older than the year b.c. 313. In earlier times the Romans had recourse to the Tiber and to wells sunk in the city. During the sixth century of the Christian era there were fourteen aqueducts at Rome. 189 I90 A BOOK OF BRIDGES

another, the Alexandrine, that brought water to the Thermae of Alexander Severus, was faced with bricks over concrete. At Minturnae, a town of the Volci, a decorative effect was given to the wall surfaces by means of coloured tufa arranged in geometrical patterns. This is enough to show that the virile conservatism of Rome did not stereotype building methods. Many persons believe that the Romans built aqueducts because they were unacquainted with the hydraulic principle

that water in a closed pipe finds its own level. Yet Vitruvius gives an account of the leaden pipes that distributed water

in Roman towns ; and Pliny says that this piping was used very often for rising mains to carry water to the upper floors of houses. But lead pipes might burst, and they were

costly ; it was cheaper to build aqueducts, for their materials belonged to the State and slave labour was in vogue.* Finally, we should pay attention to the Roman aqueducts because they were an apprenticeship in the building of lofty and daring arches. In the Anio Vetus, for example, which dates from about the year b.c. 272, some of the arches rise to a height that exceeds ninety feet. And any architect who conceived and brought to completion a fine aqueduct, such as the Pont du Gard, or the wonderful structure at Segovia, deserved to take rank with Gains Julius Lacer. No problem of bridge construction would have baffled his matured knowledge. It is said that the earliest vaulted bridge of the Romans

* Mr. R. Phene Spiers has written admirably on these technical matters. A FEW WORDS ON THE ROMAN GENIUS 191 was erected under the elder Tarquin, about six hundred years before the Birth of Christ. Emiland Gauthey says, for example, " Pont Salaro, a Rome, sur le Teverone. Get ouvrage, compost de trois arches en plein cintre, de 16, 6 a

2 1 metres, et de deux arches plus petites, de 6, 8 metres, fut

^lev6 sous Tarquin I'ancien, six cents ans avant J. C." Yet there is no evidence to justify this dogmatism. The bridge may have been a timber one, like the Pons Sublicius. It carried the Via Salaria over the Anio {Teverone) about two and a half miles from Rome, and was called usually the

Pons Salarus. Livy speaks of it under another name. Pons

Anienis, and makes it the theatre of an immortal fight, the one between Manlius and a gigantic Gaul, b.c. 361. In single combat Manlius killed the barbarian, and took a chain

(torques) from the dead body, and put it around his own neck, as a proof of his victory, winning by this act the sur- name of Torquatus. The Pons Salarus does not appear again in early history.

By the year B.C. 361 it may have been made into an arched

bridge of stone, though it was not till b.c. 313 that the first aqueduct to Rome was constructed. In any case, however, we learn from an inscription, which Sir William Smith accepted as authentic, that the Pons Salarus was rebuilt in the sixth century a.d., by Narses, general and statesman, in the reign of Justinian. If in this reconstruction any earlier

work was preserved, we must look for it in the smallest arches described by Gauthey, for we find narrow spans in the earliest Roman aqueducts. Those of the Marcian are 192 A BOOK OF BRIDGES

only eight metres. The Ponte Salaro existed till 1867, when it was blown up during a panic caused by Garibaldi's march to Rome. A fortified castle stood above one side of the central arch, rising from the footway, whose width was

PONTE ROTTO AT ROME, ANCIENTLY THE PONS PALATINOS OR SENATORIUS more than eight metres. The bridge was about a hundred metres long, and its vaults were built with exceedingly heavy stones remarkable for their bossage work. A wood- cut of this late Roman bridge is given by Professor Fleeming Jenkin, but it differs from the illustration in Emiland Gauthey's "Traits de la Construction des Ponts," Paris, 1809-16, Vol. I. A FEW WORDS ON THE ROMAN GENIUS 193

There has been so much controversy over the antique bridges at Rome that the steadiest head becomes giddy while reading Palladio, Becker, Bunsen, Piranesi, Sir William Smith, and other experts. Perhaps we may be on safe ground when we step delicately on tiptoe into the historic environment of the Pons Palatinus, a bridge which seems to have been erected in the year B.C. 179.* A good part of this bridge was rebuilt in the time of Pope Gregory

XIII (1572-85), but in 1598 it was wrecked by a terrible

flood, and people began to speak of it as the Ponte Rotto, or broken bridge. From Palladio's book on architecture, printed at Venice in 1570, we learn that the Pons Palatinus, or Senatorius, was known also as the Ponte Santa-Maria, so Rome must have been horrified when a classic bridge recently dedicated to the Virgin was overthrown by a spate, which spared the Pons Cestius and the Pons Fabricius. The arches of this bridge were rather more than twenty- four metres in span, and their large archivolts were boldly prominent. The piers, about eight metres thick, were protected by angular cutwaters, and above each cutwater was a tall niche flanked by pilasters whose capitals touched the broad cornice that framed the spandrils in a vigorous manner. Each spandril was ornamented with a sea-horse

* I take it that the Pons Palatinus, or Senatorius, mentioned by Palladio, was the bridge called by ancient writers the Pons Aemilius, whose piers were founded in the censorship of M. Aemilius Lepidus and M. Fulvius Nobilior, b.c. 179; the arches were finished some years later, when P. Scipio Africanus and L. Mummius were censors. Becker and Canina assume that the Pons Aemilius became the Ponte Rotto, and Degrand and others identify the Palatine bridge of Palladio with the Ponte Rotto. — "

194 A BOOK OF BRIDGES

carved in relief ; and this decoration was foiled by the plain, deep parapets whose horizontal lines were diversified here and there by a projection. Brangwyn's drawing of the

Ponte Rotto gives all the architectural character, and we see that this bridge was a great Roman citizen, manly and brave and noble. Further, when we speak of any bridge as virile as this one arch, we have a right to use masculine pro-

nouns, " he " and " his " and " him." The trivial word " it

is a feeble neutrality that belongs to a great many bridges,

both ancient and modern ; but a Caesarian achievement like the Pons Palatinus, or the Pont du Gard, or the Puente Trajan at Alcantara, takes rank among the rare deeds that

do honour to a splendid manhood ; and this we should recognise in our pronouns. Palladio says that in his time, from 151 8 to 1580, three other bridges over the Tiber, at Rome, were in good preser- vation. Let us take a glance at them:

I . The Pons -^lius, called then, as now, the Ponte Sant' Angelo, built by ^lius Hadrianus, who reigned from a.d. 117 to 138, and who erected his bridge as a passage over the Tiber to his own mausoleum, which forms the ground- work of the present castle of St. Angelo. An earlier bridge connected the Vatican and its neighbourhood with that part of the city which Caligula and Nero had beautified with

gardens ; and remains of it still exist near S. Spirito. The date of its disappearance I do not know, but in the days of Procopius, the sixth century of the Christian era, the Pons ^lius was the only communication between the city and the —

A FEW WORDS ON THE ROMAN GENIUS 195

Vatican district. Either legend or truth says that the ^lius had a bronze cover upheld by forty-two pillars. If this gleaming roof ever existed (and writers should be afraid of pretty details in ancient history), it must have been damaged very much when the parapets were broken down in the fifteenth century. This accident was caused by a great crowd that lost control of itself on the bridge, when thronging to St. Peter's to receive the Pope's benediction. At last the parapets gave way, and ninety-two persons were either drowned or crushed to death. Long afterwards, as we know, Giovanni L. Bernini (1598-1680) designed balustrades of iron and stone, but dwarfed them with ten huge statues

commissioned by Pope Clement IX (p. 324). The figures of St. Peter and St. Paul at the city entrance were put up by Clement VII. The bridge itself—or himself, shall we say ? —has a technical inspiration akin to that of the Pons Palatinus; but there is less ornament, and above the cutwaters, instead of tall niches, we find rectangular pillars with plain capitals, upon which Bernini erected pedestals for his " breezy angels."

2. The Pons Fabricius, connecting Rome on the city side with the Insula Tiberina. In very early times this island in the Tiber was united to each bankside by a bridge,

and hence it was called Inter Duos Pontes. The present Pons Fabricius was either founded or restored by L. Fabri- cius, curator viarum in B.C. 62, as appears from the inscription on it, and from Dion Cassius. It is mentioned by Horace as a bridge very attractive to suicides : 196 A BOOK OF BRIDGES

. . . jussit sapientem pascere barbam Atque a Fabricio non tristem ponte reverti.

Since Palladio's time, if not from a much earlier date, the Pons Fabricius has been known as the Ponte Quattro Capi, because its entrance from the left bank has a protective emblem, a quadrupled head of Janus, the guardian deity of gates, and a divinity with many other occupations, all very alert and troublesome. So we must add this pagan emblem to the other symbols of religious faith with which bridges have been sanctified. In 1680 the Pons Fabricius was repaired by Pope Innocent XL There are two arches, each

with a span of 25, 34 metres ; and there used to be two

other arches, only 3, 50 metres wide, pierced through the abutments, but they have disappeared among the houses on

each bankside. The bridge in its greatest width measures a little more than 15 metres. It has a bold cornice ornamented with mutules, and its relief bay for spate water is flanked by pilasters. M. Degrand says of the Pons Fabri- " cius : C'est le premier pont dans lequel les t^tes des votites

ne forment pas des demi-circonf^rences : I'intrados est un arc de cercle de 25 m. de rayon et de 20 m. de fl^che." Here we find a starting-point for the lovely arch invented

at Avignon by Saint B^ndzet (p. 81).

3. The Pons Cestius, on the other side of the island, known to-day, and in Palladio's time, as Ponte S. Barto- lommeo. Yet its inscription, which is mentioned by Canina

and by Sir William Smith, speaks of it as Pons Gratianus, and commemorates its repair by Valentinian, Valens, and A FEW WORDS ON THE ROMAN GENIUS 197

Gratian. It has but one arch, nearly a metre less in span than those of the Pons Fabricius. These two bridges, according to Piranesi, were founded in a very remarkable manner, on reversed arches built under water. Gauthey gives two drawings of this construction, but he does not guarantee the truth of Piranesi's details. Five other antique bridges crossed the Tiber at or near Rome, but Palladio found nothing more of them than a few

remnants. Already I have spoken of two, the Pons Sub-

licius and its understudy (p. 140). On the left bank, facing the church of S. Spirito, Palladio saw remains of the Pons

Triumphalis ; but Piranesi and Bunsen do not agree with Palladio. They place the Pons Triumphalis beyond the

Pons ^lius, and Sir William Smith thinks it probable that the remains near S. Spirito belong to a bridge which the Mirabilia names Pons Neronianus, and which ancient topographers describe as Pons Vaticanus. Then there was the Janiculine bridge upon the foundations of which, between 1471 and 1484, Pope Sixtus IV had erected the Ponte Sisto. As the Janiculine bridge went from the

Janiculum to the Porta Aurelia, it was known also as

Pons Aurelius ; and in the Middle Ages it seems to have been called Pons Antoninus. As for the Ponte Molle,

anciently the Pons Milvius, it belonged to the Flaminian Way, crossing the Tiber beyond the walls of Rome, a mile and a half outside the city. Its founder was said to be the earlier .^milius Scaurus, who died about eighty-five years

before the Birth of Christ. Yet it certainly existed in 198 A BOOK OF BRIDGES

B.C. 207, for Livy relates how the people poured out of Rome as far as the Milvian bridge in order to meet the messengers who brought tidings of the defeat of Hasdrubal. This may have been a timber bridge, and ^milius Scaurus may have displaced it for a stone bridge during his consul- ship, B.C. no. Only a few fragments of the Pons Milvius existed in

Palladio's time ; and so the Ponte Molle now extant has a false reputation of being Roman. In fact, it is a very poor structure, badly designed and very uncouth. IV

THERE was in Italy a Roman bridge built of white Istrian stone that Palladio admired much

more than any other; indeed, he admired it too much, for he copied it in most of his pontine architecture, as if he had no right to make use of his own originality ! And since his time many architects have cribbed from the same shining model, the Ponte Augustus over the Ariminus, at Rimini. Two Roman bridges are found in the neighbourhood of this town, one with seven arches and one with five ; both date from the same great era, and in both the roadway is not carried through on the same level, but has an ascent at each end, like the two bridges of Roman origin at Vicenza. It was the bridge with five arches that Palladio preferred at Rimini,

and his fondness for it —or, rather, for her, as this Roman bridge has a charm somewhat feminine—is approved by recent experts, and notably by R. Phen6 Spiers and M. Degrand. She is a bijou among bridges, and not a male prodigy, like the Puente Trajan. Her arches are small in span, ranging from 8 m. 77 to 7 m. 14, according to Gauthey,* the narrower ones being at the sides, and the three larger

* Degrand says lo m. 56 and 8 m. i. R. Phene Spiers gives 27 ft. for the spans of the three central arches, and the side ones about 20 ft. 199 200 A BOOK OF BRIDGES

bays in the middle. Their form is semicircular, and their springing does not rise from low water-level, like that of the four or arches in the Roman bridge at M^rida ; it is placed five metres* above low water, and this planning adds light-

A PONTE MAGGIORE OVER RAVINE OF THE TRONTO AT ASCOLI-PICENO IN ITALY ; BUILT IN THE MIDDLE AGES, BUT ROMAN IN STYLE

ness and grace to a fortunate design. As usual, the piers are too heavy, their thickness being about equal to a half of the adjacent voids ; they are protected by very vigorous cutwaters that break the current with angular wedges of

* Gauthey says four, Degrand says five. A FEW WORDS ON THE ROMAN GENIUS 201

ninety degrees. The spandrils are decorated with niches, and every niche is flanked by pilasters carrying entablature and pediment. A beautiful cornice supported by modillions crowns this bridge, which was begun by Augustus and finished by Tiberius.

Brangwyn is fascinated by the bridges at Ascoli-Piceno, the Asculum Picenum of the Romans, that gleams on a terrace dominating the Tronto, about twenty miles from

Porto Ascoli on the Adriatic. The town is defended by ravines, across which four great bridges are thrown. The

Ponte di Porta Cappucina is a Roman bridge, a fine

example with a single arch of 7 1 ft. span ; and the Ponte de Cecco is Roman. It has two arches and belongs to the Via Salaria. As for the Ponte Maggiore and the Ponte Cartaro, they are mediaeval, but the former is an adaptation from Roman aqueducts, and in the latter there appear to be some traces of antique craftsmanship. All these great viaducts are marvellously constructed, for they resisted the earthquake that shook Ascoli in 1878. V

VERY little is known about the Eastern bridges constructed by the Romans. In Jebb's " By Desert Ways to Baghdad " an illustration is given of a

Roman bridge over the Tigris at Diarbekr ; and on the same river, at Hassan, between Diarbekr and Mosul, there are ruined piers of another Roman bridge. Again, at Shushter, in Persia, we find a dike and a bridge ascribed to the Roman Emperor Valerian, whom Shapur the First took prisoner at Edessa, a.d. 260. The dike is called the Band-i-Mizan, the bridge the Pul-i-Kaisar.

But if Valerian helped to build these huge monuments, very little Roman work now remains ; seventy yards

of dike and bridge were swept away in 1885 ; and the Pul- i-Kaisar has been rebuilt several times. Indeed, as Brangwyn's pen-drawing shows, the arches (there are forty in all) differ in style as well as in size and material.

"Persian tradition has it that Ardashir (either Artaxerxes of the old Persian kings or Ardashir of the Sassanians) built the first dike across the river Karun in order to raise the water of the river to the level of the Darian canal. The dike became destroyed and was renewed under the

Sassanian Shapur I, by Roman workmen sent for by Valerian, who had been captured by the Persian king in 202 ;

A FEW WORDS ON THE ROMAN GENIUS 203

260. That Valerian had a part in constructing these remarkable works does not rest upon any historical basis we may, however, believe that the Sassanian Ardashir, or

his son Shapur I, finding that the river, with its bed in

THE PUL-I-KAISAR AT SHUSHTER IN PERSIA. ITS LENGTH IS 560 YARDS, AND ITS ROADWAY IS ^ YARDS WIDE

friable soil, was daily getting lower and finally threatened to leave the town and the Mian-do-ab district dry by not filling the Darian canal, engaged Roman workmen. The Geuger canal was cut and the river diverted from west to east of the town. The old river then became emptied and

its bed was raised and paved with huge flags, to prevent 204 A BOOK OF BRIDGES further erosion and washing away of the soil and a conse- quent fall of the river. Then the Band-i-Mizan and the

." * great bridge were erected. . . In every chapter of this monograph other references to Roman work will be found.

* Sir A. Hoututn-Schindler, c.i.e., "Encyclopaedia Brit.," 191 1, article " Shushter." DURHAM

CHAPTER THE FOURTH OLD BRIDGES, EUROPEAN, PERSIAN AND CHINESE

MEDIEVAL England was a forrestial country, and many a roadside wood gave shelter to footpads and bandits, who planned ambuscades, and amused themselves with rape and rapine and murder. If they were less ready to cut a throat than to broach a tun of wine* the terror inspired by their evil reputation told lies that duped everybody. In fact, travellers were pitied by Acts of Parliament, but they had greater faith in the Church, which enabled them to renew their failing courage with frequent prayer at shrines by the wayside. Saint after saint was called to their aid ; and from the time of St. Dunstan the Church reckoned the building of bridges among the most urgent duties of charity. Some good must have been done, yet rivers and journeys were feared

very much ; fords were common, and an ambush near a

* See the Statute of Winchester, a.d. 1285, and Statute 2, Richard II, a.d. 1378; see also the Rolls of Parliament. Among the most dangerous rogues were many lawless barons and their retinues, against whom the Law protested vainly. In

A.D. 1 138 we find them mentioned by the "Gesta Stephani," and till late in the fifteenth century the partisans of nobles were feared on the roads. But for them the Wars of the Roses would have been less horrible, and wayfaring life would have been less barbarously at odds with those Christian virtues which were proclaimed everywhere by great symbols of religion : manor churches, hopeful cathedrals, vast monasteries, wayside chapels and shrines, and quiet homes whispering with the prayers of gentle nuns. Brutal strife among Christians had made the world into a new Garden of Gethsemane over which jthe Spirit of Christ brooded and wept. 207 — — —

2o8 A BOOK OF BRIDGES

ford was a peril difficult to encounter. In the " Ballad of Abingdon Bridge," which dates from the time of Henry V, we see what fords were like and how their guardians

behaved to travellers. "Another blissed besines is brigges to make," the rustic poet cries, thinking of unfortunate wayfarers who were washed from their saddles into a

flooded river :

And som oute of their sadels flette [fall] to the grounde, Wente forthe in the water wist no man whare,

Fyve wekys after or they were i founde, Their kyn and their knowlech [acquaintance] caught them up with care.

And this life-tax claimed by riverS was not the only trouble. The keepers of a ford knew no pity, but got

their toll in relentless ways, taking bread from the beggar's

wallet and " a hood or a girdel " from " the pore penyles." Very often, too, great woods encircled riverside towns and manors, so that outlaws after dark could steal up close to

the houses and the bridge; it was then that pilgrims welcomed with the greatest relief the cresset-lights that glimmered from some friendly building on the bridge from a chapel, or a defensive gateway, or a small bickering windmill, or a good watermill buttressed against a pier and rising high above the parapet. And now we must pass in review six old species of bridge :

I. The Housed Bridge, such as we find in Brangwyn's beautiful monochrome of the quaint bridge at Kreuznach, in Germany. PS

EUROPEAN, PERSIAN AND CHINESE 209

2. The Shrined Bridge, as in Brangwyn's alert impression of the Gothic bridge at Elche, in Spain.

3. The Bridge of Mills, as represented in the very romantic sketch of the old and broken bridge at Millau, in Southern France, at the confluence of the Tarn with the Dourbie. Another example, much modernised, exists in France, at historic Meaux, about thirty-two miles from Paris.

4. The Chapelled Bridge, as at Wakefield, and Rother- ham, and Pisa, and Avignon (see Frontispiece), and elsewhere.

5. The War-Bridge, which in Brangwyn's art receives the most varied and vigorous recognition. Never before have they been studied so completely by an artist.

6. The Bridge of Shops, as at Venice in the Rialto. II

ought not to be surprised that mediaeval WEbridges were connected in a self-evident manner with all the principal motive-powers of social

life. They were excellent places where kings and nobles could show off their military ambition, and where the Church could be active in good work done for the safety of wayfaring. Shops on a bridge were valued because of the continuous traffic that brought trade to their doors ; and a few private houses on a market bridge gratified a middle- class vanity, that took pride in paying the higher rents of a business thoroughfare. To live on Old London Bridge

was a distinction ; to be a tradesman on the Ponte Vecchio in Florence, or on a timber bridge in Paris, was to be prosperous, for no bridge of shops was wide enough to be unpopular among those who had money to spend. Can anyone explain why the feminine joy of going to market has ever been most adventurous in narrow streets, or in * short streets of a medium width ?

* There seems to be only one exception to this rule. I refer to some Chinese bridges of the thirteenth century, mentioned by Marco Polo in his account of the city Sin-din-fu, now called Ching-tu-fu, situated on the western side of the province " of Se-chuen, of which it is the capital. Marco Polo says : The city is watered by many considerable streams, which, descending from the distant mountains, surround and pass through it in a variety of directions. Some of these rivers are half a mile in width, others are two hundred paces, and very deep, over which are built several 210 EUROPEAN, PERSIAN AND CHINESE 211

Whatever the reasons may be, here is a point to be remembered when we study such a bridge as the Rialto, at Venice, which carries three little streets on an arch twenty- four feet six inches high, and ninety-one feet in span, with a soffit about seventy-two feet wide. To-day the Rialto shops are trivial and mean, but in the great time of the Republic they displayed the most luxurious oddments of fashion, and delighted the idle rich. Very often it is said that the Rialto was built from a design by Michelangelo, as if this wonderful master of a tragic and supreme dignity could have amused his leisure with such a pretty whim in ornate building ! Modern criticism shows a very poor taste when it repeats this old fallacy, or when it describes the Rialto as a masterpiece of architecture dating from the Renaissance. In comparison with the bridges of Isfahan, which belong to the sixteenth and seventeenth centuries, the Rialto is a. mere toy. Its origin is the subject of

large and handsome stone bridges, eight paces in breadth, their length being greater or less according to the size of the stream. From one extremity to the other there is a row of marble pillars on each side, which support the roof; for here the bridges have very handsome roofs, constructed of wood, ornamented with paintings of a red colour, and covered with tiles. Throughout the whole length also there are neat apartments and shops, where all sorts of trades are carried on. One of the buildings, larger than the rest, is occupied by the officers who collect the duties upon provisions and merchandise, and a toll from persons who pass the bridge. In this way, it is said, his Majesty receives daily the sum of a hundred besants of gold." According to the Latin editions of Marco Polo, the booths or shops were set up in the morning and removed from the bridge at night. If so, then the width of these bridges, described by Marco as " eight paces," must have been more than twenty-four feet, since booths would have obstructed such narrow footways. Marco Polo's great editor, Colonel Yule, interpreting the description of another bridge, proves that the " paces " must be geometric. 212 A BOOK OF BRIDGES

Rondelet's "Essai Historique sur le Pont de Rialto," where we watch a great competition between Palladio and Antonio da Ponte. Palladio was the greater man, but the Senate rejected his designs,* and in 1588 Antonio da Ponte built his arched scaffold or centring and laid the first blocks of Istrian marble.

In Brangwyn's picture the Rialto is gay enough to belong to the joyous times of the Republic ; and by comparing this picture with the pen-drawings of the bridges at

Isfahan, in Persia, it is easy to note the difference in spirit between two cities that attained in the same age their greatest prosperity. In 1590, Isfahan became the capital

of Persia ; and by this year Venice had recovered from the destructive fire of 1577, and was beautifying herself in many ways, as with the Piazza di San Marco. At Isfahan no fewer than five old bridges cross the Zendeh Rud, the most ancient being the Pul-i-Marnun, which was built by Shah Tahmasp, who reigned from 1523 to 1575- It is not a great bridge, so it stands apart from the Pul-i-Khaju and the vast Bridge of Ali Verdi Khan, which undoubtedly are among the finest bridges in the world. Their beauty has such a gracious power, such brightness and grandeur, that even the Roman bridge at Alcantara may seem to rival it unsuccessfully. Brangwyn has drawn these Persian masterpieces, but the Pul-i-Khaju alone

Degrand, in his " Fonts en Magonnerie," gives a reproduction of Palladio's drawing, which represents an imperial scheme, far and away better than Antonio da Ponte's. O H X U X <

., c

0-2 H z; - o < H 2 z

EUROPEAN, PERSIAN AND CHINESE 213 belongs to this section on housed bridges—except in some architectural points common to both. Their arches are Moorish, and their builders may have borrowed from the Romans an idea which has come down to our time in at least one antique monument, namely, the ruined aqueduct

THE PUL-I-KHAJU OVER THE ZENDEH RUD AT ISFAHAN, PERSIA

at Lyon, not far from Saint Ir6n6e. Through the piers of this aqueduct arches are cut transversely, so as to form a side arcade all along the length of the structure. These lateral arches vary much in size, and some of them have

been built up. I know not for what purpose they were

used ; but they lighten the piers, which are uncommonly —

214 A BOOK OF BRIDGES massive. It is this arrangement—a vaulted gallery cut through the sides of piers—that we find also at Isfahan in the two historic bridges of the Sefi kings. The Pul-i-Khaju has been described many times, but

Lord Curzon's account of it is by far the most valuable :

"The Pul-i-Khaju is shorter than the bridge of Ali Verdi Khan, being only 154 yards in length, owing to a contraction in the bed of the river, which here flows over a ledge of rock. The structure consists, in fact, of a bridge superimposed upon a dam. The latter is built of solid blocks of stone and is pierced by narrow channels, the flow in which can be regulated by sluices. This great platform is broken on its outer edge, the stones being arranged in the form of steps descending to the river-level. Upon the platform or dam repose the twenty-four main arches of the bridge, which is of brick, and the chief external features of which are four projecting two-storeyed hexagonal pavilions, one at each corner, and two larger pavilions of similar shape in the centre, a third storey being erected upon the roof of the more westerly of the two. As in the case of the

Julfa Bridge,* the basement is pierced by a vaulted passage, running the entire length of the bridge through the piers on the top of the dam, and crossing the successive channels by stepping-stones six feet deep. The main roadway of the bridge, twenty-four feet broad, is also flanked by a covered gallery on each side, leading to the hexagonal pavilions, and opening by a succession of arches on to the outer air.

» The Bridge of Ali Verdi Khan. EUROPEAN, PERSIAN AND CHINESE 215

Finally, there is a terrace-walk at the top, which was originally protected by a double parapet and screens. The pavilions were once adorned with rich paintings and gilding, and with panels containing inscriptions. The decoration is now more jejune and vulgar, and the spandrils of the arches are mostly filled in with modern tiles. In olden days this bridge was a favourite resort in the evening, where the young gallants of Isfahan marched up and down, or sat and smoked in the embayed archways overlooking the stream. Now it is well-nigh deserted save in the springtime, when the snows melt in the mountains, and in a few hours the Zendeh Rud is converted from a petty stream into a foaming torrent. Then the good folk of Isfahan crowd the galleries and arcades of the bridge, and shout with delight as the water first rushes through the narrow sluices, then mounts to the level of the causeway and spills in a noisy cascade down each successive stairway or weir, and finally pours through the main arches, still splitting into a series of cataracts as it leaps the broken edges of the dam." *

Such is the Pul-i-Khaju. Her architect's name is unknown, but she dates from the time of Shah Abbas II, who reigned between the years 1641 and 1666. Even in photographs she is a bridge of enchantment where from time to

time all the tired geniuses of the world should go for a

romantic holiday ; the pavilions certainly await the coming of worthy guests, who would save them from the vulgar

* Lord Curzon's book on Persia. 2i6 A BOOK OF BRIDGES

decoration which has displaced the old paintings and en- richments. That vaulted arcade in the basement, running

transversely through all the piers, and crossing the channels by huge stepping-stones (one of the earliest bridges copied by primitive man from Nature's object-lessons), has a great

historic interest, though in pictures and photographs it

attracts very little attention. Was it suggested by a

Roman model, or was it rediscovered by the originality

of a great architect ? I have searched long for an answer to these questions, but in vain. Perhaps Old London Bridge at her best, after the building of None-such House, in 1576, may have been as entertaining to the eye as is the magic of the Pul-i-Khaju, though inferior to this masterpiece as a work of art. The earliest representation of Old London Bridge comes to us from the fifteenth century, in a miniature that graces the poems of Charles d'Orl^ans.* It shows five piers much broader than the adjacent voids, also a line of picturesque timber houses jutting out from the parapet, and a great chapel of apsidal form, with wrought pinnacles and two tiers of decorated windows. This Gothic church, dedicated to St. Thomas k Becket, rises from water-level to a height exceeding that of the tallest house on the bridge. " " In Howell's Londinopolis (edition of 1657) it is said that during King John's reign, 11 99-1 2 16, a mayor of

* British Museum, the MS. i6 F. ii, Fol. 73. The little picture is drawn from nature a reproduction it " ; bad of appears in M. Jusserand's good book on EngUsh Wayfaring Life in the Middle Ages." EUROPEAN, PERSIAN AND CHINESE 217

London, 'being master workman of the bridge, builded from the foundation the large chappel on the bridge upon his own charges, which chappel was then endowed with two priests and four clerks, beside chantries." It was put on the east

side ; there were two storeys, one with an entrance from the river, the other with a porch on the roadway. So boat- farers had their own place of worship on London Bridge, and they walked to their praying-stools over a pavement of black and white marble. Both storeys were brilliantly lighted ; in the upper one there were eight windows.

The first architect of Old London Bridge, Peter Cole- church, "priest and chaplain," died in 1205, and was buried in the Chapel of St. Thomas, just twenty-two years after Saint B^n^zet was laid to rest in his bridge chapel at Avignon. Between 1176 and 11 83 Colechurch may have had some correspondence with B^n^zet, for both were heads of religious bodies engaged at the same time on similar work. "Their letters to one another would interest engineers," remarks Professor Fleeming Jenkin, as if engineers alone were attracted by Old London Bridge.

1 designs, every- In 1 76, when Colechurch prepared his body was excited about a great and very useful enterprise. The King, the clergy, the citizens of London, even country- folk, endowed the bridge with lands or sent money to

hasten its completion. The Archbishop of Canterbury subscribed a thousand marks. During the sixteenth

century the list of donors was still to be seen " in a table fair written for posterity," treasured in the chapel on the — ;

2i8 A BOOK OF BRIDGES

bridge.* Stow makes no reference to the mayor who at his

own expense built the chapel ; he says only that Colechurch was buried "in the chapel builded on the same bridge in the year 1205." Four years later the bridge was finished by three "worthy merchants of London—Serle Mercer, William Almaine, and Benedick Botewrite, principal masters of work." Their director-in-chief was a French- man, brother Isembert by name, whose magnificent bridge at Saintes had delighted King John, and who was chosen to superintend the finishing of Old London Bridge a little while before the death of Colechurch. In July, 1212, a terrific fire occurred on the bridge, beginning at the Southwark end, but spreading to the

houses at the north end also ; no fewer than 3000 persons lost their lives. Citizens gathered at the north end to watch the spectacle, and were overtaken by the swift-travelling flames and by panic also. Many jumped into the river and

were drowned ; others were killed by falling timbers, and many were scorched to death. Again and again, in after

years, London Bridge and her chapel were ravaged by fire

as in 1300, in 147 1, in 1632, in 1666, and in September, 1725-

Here is Stow's picture of the houses : "The building was of timber, very substantial and beautiful, for the houses were three stories high, besides the cellars, which were within and between the piers, and over the houses were stately platforms, leaded, with rails and * J. J. Jusserand, p. 49. See also in Stow. EUROPEAN, PERSIAN AND CHINESE 219 ballasters about them, very commodious and pleasant for walking and enjoying so fine a prospect up and down the river, and some had pretty little gardens with arbours."

All this fine architecture was destroyed in the Great Fire of 1666, but a still better pile of buildings was put up, and now the houses were separated by a roadway twenty feet wide. In earlier times the passage between the houses ranged in width from twelve feet to fourteen. At last, in 1756, every house on the bridge was pulled down, but tjie chapel was granted a few years more of life. Guess why ? Because some vandal or other was willing to use the chapel as a warehouse. At about the same time the chapel on Rotherham Bridge, Yorkshire, was a tobacco shop. As for the merchant who leased the Chapel of St. Thomas k Becket, he built a new ceiling with heavy beams that crossed each other ; soon he tired of his warehouse, and then—then the historic old fane was destroyed. A city is like a board meeting—from time to time it has a conscience. Two other historic facts find a place here. In March, 1782, the right of toll was discontinued, so that Londoners were separated from a direct personal interest in the welfare of their bridge;, just as free education separates parents from their most sacred duties. Eight years earlier, in 1774, the waterworks of little windmills were destroyed by fire, after bickering for 192 years under the shadow of Old London Bridge. The end was drawing near. New London Bridge was begun on March 15th, 1824. George Rennie made the 220 A BOOK OF BRIDGES designs after studying the Bridge of Augustus at Rimini, and his brother, Sir John Rennie, directed the workmen on a site 200 feet west of the Old Bridge just as Peter Cole- ; church crossed the Thames a little west of the earliest known timber bridge built by Londoners.* It took only seven years to carry out the designs of Rennie, whereas Colechurch and his successor, the Frenchman Isembert, were busy for thirty-three years. On August ist, 1831, New London Bridge was opened by William IV, and by the second year of Victoria's reign the old bridge was dead and gone. It had taken a long time to murder her, fragment by fragment, but yet she lived almost as long as

the first Westminster Bridge, designed by M. Labelye, which lasted from 1750 to 1853.

One purpose of Old London Bridge has been forgotten : she was an arcaded dam, and she deepened the water for shipping on the eastern side. According to Arber's reprint of "Euphues and his England," there were twenty arches in

all, "whereof each one is made of excellent freestone squared, every one of them being three-score foote in height, and full twenty in distance one from an other."

This latter statement is incorrect. The arches ranged in width from 18 feet to 32 feet 6 inches, and the piers varied

in breadth from 25 to 34 feet ; they were raised on strong elm piles, covered with thick planks bolted together, and they occupied not less than two-thirds of the waterway.

* This was finished in 1014; in 11 36 it was burnt down, and in 1176 Colechurch started upon his brave enterprise. P O P w

p w o w O g " z P H

. a!

EUROPEAN, PERSIAN AND CHINESE 221

Yet modern engineers played the fool with this ancient break- water. Several arches were thrown into one large span, so the Thames poured through the bridge with an increased

and uneven force ; the ground current developed a scour that dug deep holes under the piers, and into these holes tons of stuff were poured ineffectually, for the scour continued to undercut the foundations. Even Labelye's bridge at Westminster was affected very much by this new devilry in the ground current of the Thames. It was Euphues who described the old bridge as " a continuall streete, well replenyshed with large and stately houses on both sides." To-day we have one bridge well replenished with houses (unless the vandalism of trade has

made a recent feast of it), but its architecture is not large

and stately. I refer to William Pulteney's Bridge at Bath, an experiment of the eighteenth century, when amateurs trifled with architecture, and architects trifled with amateurs.

The structure is sedately prim and dull, but yet it is admir-

able, for it has tried to renew in England a generative tradition that links every housed bridge to the earliest lake- villages.

So I am glad to say that the crippled old buildings on the High Bridge at Lincoln—a favourite subject of Peter de Wint—have been restored. This work was done, and done very well, thirteen years ago, under the direction of two architects, and a long account of the repairs, with a full-page illustration, was published in "The Builder," March 21, 1903. The illustration shows the back view of the 222 A BOOK OF BRIDGES

houses with the bridge beneath and beyond. The restora-

tion is conservative and excellent, but time alone can

mellow it from a thorough newness into a ripe complete-

ness. Even then it will be a poor little monument when

compared with its Florentine superior the Ponte Vecchio, which history gives to Taddeo Gaddi and the fourteenth century. The Ponte Vecchio has but one fault—the long and level roof, which has two parallel lines of a most unpliant straightness. Why should an architect put himself at odds with the curved witchery that Nature gives to her sky-lines

and horizons ? In other respects the Ponte Vecchio has a charming citizenship haunted by romance. Even the beaked piers are not too large, though they are said to date from the year 1355. Perhaps they were remodelled by

Renaissance art ; certainly they have a style not unlike that of the great Ammanati. As for the three arches, they are well balanced, their roadway has a gentle slope, and their shape goes about half-way between a cycloid and a surbased round arch. The, cycloid form appears in the arches of another Florentine bridge, Ammanati's masterpiece, the incomparable Ponte della Trinitk. Some of the many- windowed tiny cots that project from the parapet of the Ponte Vecchio seem to be stuffy compromises between tombs and homes ; they would be fit resting-places for the occasional ghosts that men of science welcome, after infinite hesitation unrelieved by humour.

But I regret always that from the Ponte Vecchio I can EUROPEAN, PERSIAN AND CHINESE 223 get no idea of the effect made in nature by Old London Bridge. Is there extant any bridge that helps us to realise the work of Colechurch and Isembert ? The once famous watermills at Meaux, in Brie, and the Pont du March^ there, are somewhat of an aid in this matter. Brangwyn visited them in 1913, and was fascinated. Some writers say that the first watermills at Meaux were built in the twelfth century ; and on a recent photograph taken from a

picture I read : Meaux, Les Moulins sur Pilotis, xii. sibcle. But these mills disappeared before the year 1835, ^^^^ ^^^^y belonged to the end of the fifteenth century, not to the twelfth. Viollet-le-Duc put this date on record, together

with the fact that the bridge and its mills were entirely of wood.* In 1420 the English captured Meaux, and they

held it till 1438, when they were defeated by the Constable

de Richmont. Had they retained the little town till the end of the century, we might venture to suppose that the

timber bridge and its wooden mills were built by our ancestors, in order to keep themselves in mind of Old London Bridge. The modern mills are many-storeyed places of business, and they stand very erect on stone piers. To-day the Pont du Marchd has eight stone arches, and

a single row of early timbered houses. I have four photo-

graphs of it, and in each it is charming. Next summer I

* Viollet-le-Duc writes as follows (vol. 6, p. 410) : "Dans les villes, on profitait souvent des arches de pont pour etablir des moulins, et mime alors les ponts at moulins, Mtis en bois, ne formaient qu'une seule et m6me construction. Avant 1835,

il existait encore k Meaux, en Brie, un pont de ce genre entierement en bois ainsi que

les moulins y attenant ; cet ensemble datait de la fin du xv" siecle. ..." ;

224 A BOOK OF BRIDGES

may see it in nature, but if a pontist travelled to see all the bridges that attract him, he would need a life of several hundred years and a river Pactolus to finance his research.* Is there any reason why England should not have a

great bridge of shops, or of watermills, or of houses ? Let Brangwyn and Mr. Lutyens collaborate, and then we shall

have a masterpiece indeed ! Here and there we have a

small bridge with a watermill close at hand ; there is one in Sussex between Midhurst and Easebourne, for example, but I know not one that warms my patriotism with a glow of pride. Viollet-le-Duc draws three charming pictures of French mill bridges which have disappeared. There was the Pont aux Meuniers at Paris, that crossed the great arm of

the Seine below the Pont au Change, facing the Palais ; it resembled the Millers' Bridge at Meaux. A great stone bridge at Chilon-sur-Sa6ne was decorated with round towers above the piers, and between these towers, on the right of every arch, a little mill was busy. This mediseval

arrangement, so rich with a quaint citizenship, lasted till the seventeenth century. Over the Loire at Nantes was another picturesque bridge that united in itself the merits of many good burgesses. Impudent houses with peaked roofs were balanced on the piers and throve well as shops footway of was corbelled a wood out from the parapet ; and between some of the piers windmills behaved like human

* Great Alas ! The War has done much harm to the Pont du Marche at Meaux. To-day (September 26, 1914) I saw a photograph of its crippled condition. One arch at least is ruined, and mended roughly with timbering. moi

K O

W OT

fa Hffi O

EUROPEAN, PERSIAN AND CHINESE 225 creatures, for the harder they toiled over the business of daily bread, the more loudly they complained. Their noise

implied that corn was very hard to crush ; and the reluctant movement of their revolving wind-sails was an image of self-pity. As mediaeval towns of importance were encompassed by walls and defended by castles, there was little free space ; hence the building of a new bridge was always a great event ; it enlarged the civic life and prepared a foundation for a new street or for a fresh line of defensive works. Thus the Bridge of Saintes was a long line of fortifications

(p. 300), while the bridges of Paris were housed and populous, unlike many a village where poor Jacques, in the midst of unceasing war, lived the life of a hunted wolf. Unfortunately, the tenants of Paris bridges wanted to thrive at their landlords' expense, and at last they ruined the landlords, who were bridges, not men, I am sorry to say. The great corbels that supported the houses pressed

too heavily on the spandrils ; caves and hiding-places were dug into the piers ; and when the houses were removed from the Pont Notre-Dame and the Pont Saint-Michel, it was found that every tenant had misused his home, even to the extent of excavating secret chambers behind the haunches of an arch. For human nature has ever claimed the privilege of doing justice to itself in actions of foolish violence.

For instance, it is disgusting to read about the desecration thrust upon English bridge chapels after the reign of —

226 A BOOK OF BRIDGES

Henry the Eighth. As an example we can take the Chapel of St. Mary on Wakefield Bridge, Yorkshire, a beautiful piece of Decorated Gothic dating from the fourteenth century. After the Reformation it became many profane things, including an old clothes shop, a warehouse, a den of flax-dressers, a newsroom, a cheesecake house, a tailor's " shop, and I know not what else ; so we think upon her stones, and it pitieth us to see her in the dust." At last it was in 1847—an effort was made to rescue her from further degradation : quite a big effort, for it cost ^1^3000, yet the cause had nothing to do with sport or with self- advertisement. To raise so much money in the service of history was a great achievement. But the chosen architect

was less fortunate than he might have been ; he was one of those Victorian "restorers" whose zeal at times was excessive. In a few months the Chapel of St. Mary was rebuilt, almost, so thorough was the renovation. Even the original front was torn off and carted to the grounds of Kettlethorpe

Park, where it still remains, I believe ; and not enough care was shown in the choice of building materials, for the new work was carried out in Bath stone and Caen stone, which were much too soft for the Wakefield atmosphere. Indeed, the new front perished so quickly that in less than forty-five years a part of its detail looked more friable than

the ancient work at Kettlethorpe ; and a second renovation became necessary. The subscriptions raised for these remodellings and repairs call to mind the fact that in much earlier times EUROPEAN, PERSIAN AND CHINESE 227

Wakefield Bridge and its chapel were objects of charity. For example, in 1391, the fourteenth year of Richard II, William de Bayley, of Mitton in Craven, left C sol ad confirmacionem cantarie in Capella See Maries sup Pont de IVakefield; and a deed dated the 27th of September, 1454, the thirty-second year of Henry VI, mentions a yearly dole of three shillings to be paid to the bridge chapel at Wake- field. At an earlier date, in 1398, two chantries were ordained in St, Mary's Chapel, thanks to the generosity of William Terry and Robert Heth, who obtained licences from Richard II "to give and assign to two chaplains celebrating divine service in the chapel of St. Mary, on Wakefield Bridge, lately built, ten pounds rent in Wake- field, Stanley, Ossett, Pontefract, Horbury, Heckmondwike, Shafton, Darfield, Preston, Jackling, and Frystone by the water." Norrison Scatcherd gives this quotation from a document in the archives of the Hatfield family, but I know not what to say of it ; for a charter of an earlier date mentions a sum of ;^io and two chaplains (p. 230) However, the chapel is built on a little island in the river Calder, and the plan is a!rranged below so as to offer the least resistance to the river. " The extra width required for the chapel above is obtained by corbelling out on each side, which gives a total external width of about twenty feet. The total length is about forty-five feet. The front towards the bridge is very elaborate, and is divided into five ogee-headed compartments, with buttresses between. Three of these, the centre and two ends, are doorways, the 228 A BOOK OF BRIDGES other two being panelled. Over this is a series of five panels filled with sculpture representing the Annunciation, the Birth of Jesus, the Resurrection, the Ascension, and the Descent of the Holy Ghost on the Disciples. Sur-

mounting the whole are battlements ; and a bold group of pinnacles at each end of the front over the buttresses. Each side has three three-light windows, and the east end

has a large window of five lights ; all have rich Decorated tracery. A well-designed turret stands at the north-east angle, and contains the staircase which communicates with the roof and crypt. On the north, south, and east fronts is

a panelled parapet, and there is a canopied niche over the east windows. There was formerly a priest's house adjoin-

ing, but the last vestiges of it were removed in 1866. . . . The windows on the south and east are filled with stained

glass. The interior is in good repair, and is fitted up for * service." And service also is held there. -f- Leland, who returned from his antiquarian tour in 1542, collected in Wakefield a good many suppositions about the origin of St. Mary's Chapel. He was happy there, because a right honest man fared well for " 2 pens a meale." On

* See "The Builder," November 22, 1890. t There has been much disputation over the origin of St. Mary's Chapel, and I " refer you to the following books : i. Remarks on Wayside Chapels," by two

architects, J. C. and C. Buckler, 8vo, Oxford, 1843. This book was approved by Parker, an excellent recommendation. 2. "A Dissertation on Ancient Bridges and

Bridge Chapels," by Norrison Scatcherd, 1828. 3. "The Chapel of King Edward III on Wakefield Bridge," by Norrison Scatcherd, 1843. In the earlier treatise the chapel is attributed to the reign of Edward IV. Scatcherd belongs to an old school of polemical swashbucklers, but what he says is worth attention, though difficult to follow. 4. "The Histories of York." EUROPEAN, PERSIAN AND CHINESE 229 the east side of a fair bridge of stone, under whose nine arches the Calder flowed, Leland was charmed to see a right goodly chapel of Our Lady, with two cantuary priests founded in it, by the townsmen, as some say ; but, on the other hand, the Dukes of York were taken as founders because they had obtained the mortmain. He heard someone say that Edward IV's father, or else the Earl of Rutland,

brother to Edward IV, " was a great doer of it," for "a sore batell was fought in the south feeldes of this bridge," and in the flight of the Duke of York's party, either the duke him-

self, or his son the Earl of Rutland, was slain a little above the bars, beyond the bridge, going up into the town of Wakefield. "At this place is set up a cross in rei memoriam." Very often to-day, as in Leland's time, the Chapel of St.

Mary is supposed to have been founded later than 1460, partly to commemorate the battle of Sandal Castle Field, now called the battle of Wakefield, and partly as a monument to a boy of eighteen, poor Edmund Earl of Rutland, second son of the Duke of York, who was murdered by the "black Lord Clifford," called the Butcher. Then a royal chantry seems to have been founded in

St. Mary's Chapel,, and endowed ; but chantries were founded often in bridge chapels, as we have seen in the case

of London Bridge (p. 217); and so we must not suppose that " chantry " and " chapel " mean always the same thing. Moreover, in architectural character the chapel belongs to about the time of Edward II, who died in 1327. This 230 A BOOK OF BRIDGES

was proved by Buckler, and in a charter of about 1358, dated at Wakefield, Edward III settled ";^io per annum on William Kaye and William Bull and their successors for ever to perform Divine Service in a chapel of St. Mary newly built on the bridge at Wakefield."*

Still, the precise date of the foundation is unimportant.

Scatcherd ascribes it to a time earlier than 1357, and dwells upon a resemblance between St. Mary's Chapel at Wake- field and Prior Crawden's Chapel at Ely, 1321-40,; he is " almost persuaded " that they were built by the same great architect, Alan de Walsingham.t

I chose the story of this bridge chapel as an instance of the desecration thrust upon old English shrines after the

Reformation had let loose the creed of self into sect-making zealotry. In the presence of fine art Puritans were often like starving dogs in the presence of raw meat. Though every mediaeval bridge without exception was united to the Church by a Christian symbol, a cross or a crucifix, yet the Puritans were so thorough in their fanaticism that only a bridge here and there was allowed to keep even the stump of a smashed cross. Some broken crosses were handed on to Victoria's time, but highway boards and their parapet repairs destroyed the stumps one by one, as in the case of Ashford Bridge, Derbyshire. A few years ago the stump of a cross had not yet been stripped from one Derbyshire

* Camden's "Britannia," Ed. Gough, Vol. Ill, London, 1789, pp. 38-9. t St. Mary's Chapel was illustrated by Toms, after George Fleming, 1743; by Lodge, in Thoresby's " Ducatus "; by Cawthorne, about 1800; and by " The Builder," November 22, 1890. ;

EUROPEAN, .PERSIAN AND CHINESE 231 bridge, the Derwent packhorse bridge, but I dare not say

that it still remains. At any moment the vandalism of a " restoration " may remind us that our highway boards ought to be guided and disciplined by independent com-

mittees of architects and artists. Their work is far less intelligent than that of the Fonts et Chaussdes in France. And so, what with the ravaging hands of our roadway officials, and what with the destructive sanctity of Puritans, our old bridges and their religious adjuncts have suffered long and much and continually. Many bridge chapels have been destroyed, as at Cromford, Doncaster, Ludlow, Bideford, Richmond (Yorks), Leeds, Newcastle, Barnard Castle, Durham (on the Elvet Bridge), Catterick, Bridge- north, Bristol, Wallingford, Bedford (St. Thomas's Chapel, Bunyan's gaol), and Droitwich, where the high road passed through the chapel, and separated the congregation from the

reading-desk and from the pulpit ! What a relic of old way-

faring life ! Yet it was cleared away as hateful to progress. A small oratory remains on the bridge at Bradford-on- Avon, Wiltshire. It is not quite on the same lines as the

original structure, for in the seventeenth century its roofing was altered into a sort of dome built with stone. It is a " housing," a tiny place for a passing prayer, not a chapel and this class of bridge oratory has become so uncommon that I doubt whether another exists. As Mr. Emanuel

Green has said, it " is now perhaps unique," and " should be carefully preserved."* In recent times neither reverence

* "Bath Old Bridge and the Chapel Thereon," by Emanuel Green, f.s.a., F.R.s.L., p. 143, British Archseological Association. 232 A BOOK OF BRIDGES nor care has been bestowed on this oratory. After the

Reformation it was profaned, as a matter of course. For a long time it was used as a " lock-up," and in 1887 it was a powder magazine !

Its pyramidal roof is crowned with a tall finial, which in

its turn carries a pretty wind vane ; and in the wind vane we find the emblem of St. Nicholas—a gudgeon. The townsfolk used to be known as Bradford gudgeon, and those of them who had been shut up in the little prison on the bridge were said to have been "under the fish and over the water."* At St. Ives, Huntingdonshire, called Slepe in "Domesday

Book," and Asleep to-day, there is another degraded oratory, a bigger one, with an apsidal termination eastward. Its original parapet has been torn down, and a brick house of two storeys adds greatly to its height. Derby also has a bridge chapel, whose history may be studied in the works

of the Rev. Dr. Cox ; but I am more interested in the oratory on Rotherham Bridge, Yorkshire. Here, as at Wakefield, the chapel stands on a small island, the upper part is corbelled out on each side, and the end against the bridge is carried by a half-arch. The plan is a rectangle about 30 ft. by 14 ft., while at Wakefield the external width is 20 ft. and the total length about 45 ft. During many years Rotherham Chapel was almost as beautiful as the masterpiece at Wakefield ; and even now, after infinite ill-usage, there is charm in the embattled parapet graced with pinnacles.

* "The Builder," August 20, 1887. Pi

< O Q

EUROPEAN, PERSIAN AND CHINESE 233

We hear of this chapel for the first time in the will of one John Bokyns, who in 1483 left three and fourpence "to the fabric of the chapel to be built on Rotherham Bridge." There seems to have been no endowment, as this chapel was unnanled by the Commissioners of Henry VIII. In

1 68 1 she was turned into an almshouse, she was a prison in and also in 1778, 1831 ; but at last she became more reputable as a warehouse. May we hope that her lost window tracery will be renewed, and will she ever be

restored to the service of the Church ? Her degradation

has lasted far too long, certainly, but it is not easy to collect money for church restoration. If our golf fanatics took the matter in hand and made an appeal to the public, their popularity would bring in subscriptions.

From a standpoint of historic social life this irreverence to ancient bridge chapels cannot be anything less than

horrible, because the earlier England owed all her best qualities to that faith which preceded Protestantism, and which passed without much injury through the terrible alembics of mediaeval war and of social egotism. In Shakespeare himself we find a product of the spectacular display which the old Church had encouraged by her

festivals ; and it is certain also that Shakespeare could not

have been a dramatic poet if the Puritanism of his time had

been a leading motive-power of public life, and not merely a writer of unpopular books. No pontist should fail to read the early Puritan scribblers, who give in a frenzy of caricature much valuable social history, without a knowledge of 234 A BOOK OF BRIDGES which the sixteenth century cannot be understood. Their

language is graphic, and so violent that it takes one's

breath away ; but in all reprints, as in those of the New

Shakespeare Society, it is kept away from the general reader by the dismal pedantry which copies the freakish spelling of sixteenth-century books. Let me give, with modernised spelling, an abridged extract from an Elizabethan Puritan, Phillip Stubbes, whose "Anatomy of Abuses" has come at last into the

history of historians. My aim is to show three things : a spirit of fierce intolerance not yet popular enough to close the theatres of London, but foolish enough to wreck shrines and to take pride in a very bad system of supposed moral teaching. It was the earlier Cromwell who appointed

Sir William Bassett, Knight, to the holy ofifice of shrine

destroyer and image breaker ; and Bassett, whose humour was killed by zealotry, regarded as sinful things even the baths at Buxton, for he locked them up and sealed them,

"that none shall enter to wash . . . until your lordship's pleasure be further known." Into this novel sanctity Phillip Stubbes poured his abundant venom. Being at

heart a thorough Puritan, it never occurred to him that it would be better to educate human nature than to take away

from it the discipline of temptation. As in earlier times

the better minds and characters had sneaked away from life into nunneries and monasteries, so Phillip Stubbes wished mankind to be a recluse, a hermit, separated by stern laws from everything that folly could abuse. Because minstrels —

EUROPEAN, PERSIAN AND CHINESE 235 and mimics sang many a lewd song, as do fools to-day,

Stubbes raged against all itinerant clowns, buffoons, and singers, and demanded that they should be put down ; by no other means could men be taught to value a little decency and self-respect. His language runs thus :

" Such drunken sockets and bawdy parasites range the country, rhyming and singing unclean, corrupt and filthy songs, in taverns, ale-houses, inns, and other public assem- blies. . . . Every town, city, and country is full of these minstrels to pipe up a dance to the devil. . . . But some of them will reply, and say, 'What, sir ! we have licences from justices of the peace to pipe and use our minstrelsy to our best commodity.' Cursed be those licences which license any man to get his living with the destruction of many thousands ! But have you a licence from the archjustice of peace, Christ Jesus ? If you have not . . . then may you, as rogues, extravagants, and stragglers from the heavenly country, be arrested of the high justice of peace, Christ Jesus, and be punished with eternal death, notwithstanding

." your pretended licences from earthly men. . .

Briefly, the people had degraded their singers, just as to-day they degrade those Sunday newspapers which have the widest circulation yet Stubbes believed that the people ; could be saved from themselves if their victims were condemned to everlasting punishment by "the high justice of peace, Christ Jesus." In like manner the people were to be improved somehow by the destruction of old votive shrines. 236 A BOOK OF BRIDGES or by the desecration of the bridge chapels in which for ages the pilgrims of England had solaced their long journeys.

Henry VIII himself, in 1510, is said to have made a pilgrimage to Our Lady of Walsingham, barefooted, and carrying a rich necklace—a light but expensive gift that did not add to his fatigue. Erasmus visited the same great shrine and kissed the relics, and all at once the Virgin nodded at him, owing to the indiscretion of a priest who pulled some strings. In the fourteenth century thirty-eight

shrines drew pilgrims to Norfolk ; for illness rambled from place to place, feeding a superstitious piety, and praying for that relief which doctors in their wild ignorance could not give. The shrines of Europe were the only physicians that the sick dared to trust. Many a pilgrim visited the Pont St. B^ndzet at

Avignon, and legend speaks also of miracles ; the good friar was buried in his bridge chapel, and during his life he healed the sick and the maimed. I know not why legend should say these things, since Bdn^zet did quite enough good work by building his noble structure over the Rh6ne, a terrible river. A Roman bridge had occupied the same spot, so that Benfezet may have used some of the Roman foundations. His work, in any case, was done with un- usual rapidity, being finished in eight years (1177-1 185).* In Brangwyn's glorious picture of the Pont St. B^n^zet one

* These dates I take from the catalogue of historic monuments issued by the Ministere de I'lnstruction Publique et des Beaux-Arts. Some writers give the dates

1 as 1 78 and 1188.

;

EUROPEAN, PERSIAN AND CHINESE 237 romantic feature is the friar-architect's tomb, the venerable

Chapel of St. Nicholas ; and historians dwell upon the fact that never once has the chapel been injured by floods or by wars. All has been wrecked except the four arches dominated by the shrine of St. B^n^zet. Pope Clement VI (1342-1352) had to rebuild four arches; in 1395, during a fierce attack on the palace of the Popes, the bridge was cut by the Catalans and Aragonese, who destroyed an arch and this breach was not repaired with stone till the year 141 8. The masonry was not good, for in 1602 the arch gave way and caused the loss of three others. Disaster followed disaster, two arches falling in 1633 ^^^ two in the winter of 1670. Turn to the Sieur Tassin's " Plans et Profils des principales Villes et Lieux considerables de France," issued in 1652, and you will find a view of Saint B^ndzet's Bridge, with two arches missing on Barthelasse Island, and three on the great arm of the Rh6ne. As a rule such gaps were bridged with timber, because a French bridge cut in war could not be repaired until permission had been gained from the foe who had done the damage.

This curious fact in mediaeval history I take from Viollet-

le-Duc ; and it may help to explain why the masterpiece of St. B^n^zet was allowed to perish. B^ndzet constructed twenty-one* arches, and the line of his bridge made an elbow pointing upstream, beyond Barthelasse Island, on the Villeneuve branch of the Rhdne.

* According to Degrand ; some other writers say nineteen. The largest spans

were a little more than thirty-three metres ; but even in these the size varied somewhat. —;

238 A BOOK OF BRIDGES

Two ideas governed this angular disposition : first, to thrust into the river a tremendous wedge of arcaded stone-

work to resist floods ; next to thwart an attack by cavalry

and infantry ; since a bridge with a bend in it would be more difficult to storm than a level and straight footway. In Spain there are several bridges of this angular sort, notably a very long one over the Pisuerga at Torquemada ; and in Corsica also there is a fine example, but in caricature,

the bridge over the Tavignano being shaped like a 2[-

Bdn6zet made another concession to tactical defence : his bridge was only 4 metres 90 wide, including the thickness

of the parapets, so it was very narrow in proportion to the nine hundred metres of its length. Just a few soldiers in

a line could have walked along it from end to end ; and wheeled traffic must have been hindered, for at one point face to face with the chapel—the roadway dwindled to half its breadth. Even in times when carts and chariots were long and narrow, a journey across this bridge on a market day must have been an adventure. This cramped road over the Rhdne was the only permanent way connecting the Papal territory of Avignon and the French territory of Languedoc. Many troubles arose on

this account, and France never rested till she had gained control over the Pont Saint-B6n^zet and Avignon, A century after B^n^zet's death the King of France put up a bullying fortress on the right bank, and closed the Villeneuve entrance whenever he liked. For about fifty years Avignon took no steps to counterbalance this attack on her liberties EUROPEAN, PERSIAN AND CHINESE 239 then a Bastille was built on her side of the river, and now the Pont Saint-B6n6zet was nearly as martial as the Bridge of Saintes (p. 300) or as the Pont d'Orl^ans, which from October 12, 1428, to the arrival of Jeanne d'Arc on April 29, 1429, aided Gaucour to baffle the earls of Salisbury and Suffolk. In the eighth year of the fifteenth century the contention between France and Avignon reached a

crisis, not at all an infrequent thing in their history ; but this crisis of 1408 unseated the Papacy at Avignon, and expelled Benedict XIII, bringing to an end a religious domination which had lasted in the city for ninety-nine years.

It is clear from this brief record of events that the Pont St. B6n6zet, like many another great bridge of the Middle Ages, had but a poor chance of becoming social and useful. Instead of being an open road to the democratic spirit and the growth of trade, she kept watch and ward incessantly, and aided the misruling class to nourish their egotisms without any care at all for the common weal. It said very little for the half-sense of ordinary men that they in their millions were unable to defend themselves against a tiny class of despots. The people were like leaves on forest trees, that fluttered ineffectually as soon as a gale began to blow. For the ounces of brain in each human skull have never been of any real worth until genius has taken control of them, for good or for ill. More than one insect has had a brain more fertile than that of the average man. Thus the cerebral ganglia of the ant, though not so large as a 240 A BOOK OF BRIDGES

quarter of a small pin's head, have evolved a marvellous

routine of life, which includes the making of bridges and the boring of tunnels under running water. Ants were

civil engineers long before men had constructed their first tunnels and drains. Have you ever tried to imagine what

would have happened in the world of primitive men if every atom in every ounce of human brain had been as fertile as the cerebral ganglia of the ant? A civilization no worse than our own might have been evolved by the

year 100,000 B.C., if not earlier. From time to time, however, amid the congealed blood that lay so thick over the mediaeval history of France, some true social justice did shine out, here and there. A few French nobles built communal bridges, and set the Law to keep them for ever from the tyrannies of a superior class that found in ordinary men neither the intelligence of ants nor the discipline that united wolves into formidable packs. The people being too silly to defend their own rights, these few good nobles tried to foresee all dangers, but their legal documents were rarely strong enough to resist their incessant foes, the stupidity of the mob and the gradual encroachments of military leaders. When Eudes, Count of Chartres, built a bridge at Tours, as an act of piety that would benefit his soul, he decreed that its public value for

all time was to be as free from all restraints as a church. At an earlier time, in a deed of 998, William the Great, Duke of Aquitaine, went so far as to forbid pour toujours a collection of tolls on the Pont Royal. He did not realise w w < y O H Z U « < [A < f< X O fc. S > syg K, Z H g 9 KM

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EUROPEAN, PERSIAN AND CHINESE 241 that his populace would cease to value the bridge as soon as they got the freedom of it for nothing. Again, in France during the Middle Ages no bridge could be fortified without permission from its founder or founders. This was a rule or law, and yet it must have been broken hundreds of tinies, for what bridge of any importance did not become a fortified work, a genuine stronghold ? One form or custom of the Middle Ages tried to encompass bloodshed with the glamour of religious fervoUr. After the battle of Towton, for example, a chapel was built on the stricken field by the Yorkists as a memorial to the souls of their dead. And a famous chapel on the Ouse

Bridge at York is said to have been erected after a stiff fight between the citizens and a Scotchman named John Comyn. The fray happened on the bridge itself, in 1168, or thereabouts, and John Comyn lost several of his followers.

Then came some negotiations, in the course of which it was agreed that the city should erect a chapel on the spot, and find priests to celebrate mass for the souls of the dead.

Another story relates that in 1 153, when Saint William was restored to the See of York, a vast crowd assembled on a timber bridge that crossed the Ouse, so eager were the citizens to welcome their prelate, who in 1147 had been deprived of office after a reign of three years. In the hustle and excitement of the home-coming, the bridge gave way, and many persons fell into the river, but no one perished because William prayed and his prayer was answered. To commemorate this miracle a chapel was built on the new — ;

242 A BOOK OF BRIDGES bridge. This legend may have some truth in it, for the chapel was dedicated to Saint William ; and perhaps the other legend about John Comyn is not entirely mythical.

One thing is certain : that in Norman times a stone bridge was built at York and graced with a fine chapel.

Between 12 15 and 1256 it was reconstructed by Archbishop Walter de Gray, who preserved some portions of the Norman chapel. More than three centuries later, in 1564, two arches were destroyed by a flood, with twelve houses that stood upon for nearly years the them ; and two bridge remained in a ruined state. Then the broken arches were rebuilt in the thirteenth-century style. Among the con- tributors to this work was Lady Jane Hall, whose donation was recorded on a brass plate on the north side of the bridge.

The inscription was quaint :

aZllilUam flfllatôn, Eorli Sâôr. Sin. 2Dom. 1566. Eatij %aYU lâll loi \iett tlie toorbis of faitti Uot^ isiieto Bs ffiblnff a tiuntirfU pountis; tW bvi'S)st to vtnt'sa.

On the west side of Ouse Bridge there were several houses, which flanked the Chapel of Saint William. At the Reformation the chapel contained several chantries, the original grants of which are still among the records of the city. After the Reformation, of course, these pious endow- ments were confiscated, and the beautiful little building was turned into an exchange where the York Society of Hamburg Merchants assembled every morning to transact business. At last, in 1810, the chapel was removed. Some parts of it were excellent work in the Early English style, EUROPEAN, PERSIAN AND CHINESE 243 while the porch and a stone screen were enriched with cable and chevron ornaments, characteristic of Norman work. A few etchings of these charming details were published in

Cave's " Antiquities of York" (1813). At the east side of Ouse Bridge stood the old gaol for

debtors, built in the sixteenth century. It lasted till 1724, when it was purchased by the city and the ainstey, and a better place was built, by assessment, as a free prison. The old bridge was condemned as dangerous in 1808, and

on December 10, 18 10, the foundation-stone of a new bridge was laid.*

Among my thousands of notes and papers I have a good article pn ancient bridge chapels written in 1882 by the late S. Wayland Kershaw, f.s.a., of Lambeth Palace Library, Mr. Kershaw made a study of old Rochester Bridge and its chapel, which stood on the main road to the Continent, close to the great cathedral, whose main architects were Bishops Ernulph and Gundulph. These bishops favoured the bridge, partly because it brought pilgrims to the shrine

* See Allen's "History of the County of York," 1832. P. Atkinson was the architect of the new bridge, and his work went on till March, 18 10. As for the old

Ouse Bridge, good views of it will be found in the " Antiquarian Itinerary," Vol. I, 1815; the " Antiquarian Cabinet," Vol. Ill, 181 7; and the " Encyclopaedia Britannica," ninth edition. Let us take a glance at one of the pictures. On the west end of the bridge is a tall building carried by two pointed arches and crowned with a small steeple. It is the great Council Chamber, with a prison for felons beneath it, according to the " Antiquarian Cabinet." We cross the river and find at the other side the gaol which was rebuilt in 1724. Two small arches on this side of the bridge balance those that arcade the Council Chamber, and in the middle is a graceful pointed arch with a span of 81 feet. The spandrils are relieved by a well-marked string-course, the parapets are fringed with railings and graced in the centre with two finials, which displace the mediaeval cross. 244 A BOOK OF BRIDGES at Rochester, and partly because it was a kindness to all wayfarers. "The Crusader on his way to the East, the stately cardinal and foreign prince, the wayworn pilgrim, and the merchant -voyager would form but a few of the

passengers . . . who would say a passing prayer at the Bridge Chapel of All Souls."* Rochester Bridge in mediaeval times was closely linked to the history of the cathedral. The first bridge was constructed of wood, and,

according to Prior Ernulph's testimony, it existed before 1215. In Vol. VII of " Archaeologia," the Society of Antiquaries published a plan of this ancient timber bridge, with a most valuable description. At the east end there was a tower of wood, with strong defensive gates, which may have resembled the timber fortifications with which the Romans barred their wooden bridges. In 1281, according to Kilburne's " Survey of Kent," the earliest bridge at Rochester was borne down by the Medway after a severe

winter ; and there is no mention of another bridge till the year 1387, when Sir John Cobham and Sir R. Knolles put up "a fair bridge of stone." Such was the slack and lethargic citizenship of Rochester. About 1800 years after the Pons Sublicius was thrown across the Tiber, a common timber bridge was carried over the Medway in an effort of progress. As for the belated stone bridge, the charter of

its foundation is preserved in the Bishops' Registers, and a

transcript of it is given in Thorpe's " Custumale Roffense." Philipott, in his " Kent Surveyed," 1659, says that the

* See Mr. Kershaw's article, "The Builder," April 29, 1882, p. 531. —

EUROPEAN, PERSIAN AND CHINESE 245 chapel on Rochester Bridge was founded in 1399 by John de Cobham, and dedicated to the Holy Trinity, but called

at its first institution All Souls' Chapel, because prayers and orisons were to be offered up there for the health of all Christian souls. Two earlier writers—Fabyan in 1406, and Grafton in 1409—attribute the finishing of the chapel to Sir R. Knolles, Knight.* Another chapel, a small one, was

built on the stone quay at the Strood end of the bridge, its founder being Gilbert de Glanville, Bishop of Rochester

(i 185-12 1 5). "We learn that Queen Isabella, when she came to Strood in 1357, entered the Chapel of St. Mary, and offered an oblation of six and eightpence in honour of

the eleven thousand virgins." Gracious ! This army of fair saints inspired a very wee act of devotional charity. There

is reason to believe that the larger chapel was not closed by legal dissolution, but passed out of use when pilgrims

became afraid to anger their Protestant neighbours ; for in the nineteenth year of Elizabeth's reign Thorpe wrote as " " follows in his Custumale Roffense : "The Queen's Attorney-General sued the wardens of the bridge for ^^513, being the amount of j£i8 per annum for twenty-eight years and a half, the last past, which sum was at that time presumed to be forfeited and due to the Queen

by virtue of the Act i, Ed. VI, for dissolving charities. It not appearing to the jury that any service had been per- formed here, nor a stipend paid to any chaplain or chantry

* In Vol. X of the " Archseologia Cantiana " an inventory is given of the posses- sions of the chapel in the year 1549. 246 A BOOK OF BRIDGES priest for officiating here, for five years next before the passing that Act, a verdict was given for the Wardens." In 1882, when Mr. Kershaw wrote his paper, the Chapel of All Souls was roofless, and nearly hidden by new buildings. Its width was about fifteen feet, and its length about forty feet. Windows were pierced in the north and south walls, and two of them were filled with brickwork or with masonry. In the south wall were traces of a piscina, and some ornamental details had been saved from the general wreckage. Much more might be written on bridge chapels and crosses, but this monograph is only a brief introduction to a vast subject, and we must pass on to the other topics after noting two points more. Both concern the sanctification of bridges by means of religious emblems. It seems quite certain that the fourteenth and fifteenth centuries were most favourable to wayside crosses. By then very popular saints had been added to the old shrines, and the custom of making pilgrimages was tormented by fewer dangers, as a rule. Many a cross was a simple thing of wood fixed in a stone base, and sometimes it carried at top a small wind vane or weathercock. Many crosses were raised to commemorate historical events, while others were put up by sinners who wished to announce their repentance. Here and there a beautiful cross became celebrated. For example, the Belle Croix on the old bridge at Orleans was a nobly modelled crucifix of bronze that stood up high from

middle pier its the buttress of the ; pedestal was ornamented EUROPEAN, PERSIAN AND CHINESE 247 with low-reliefs representing the Holy Virgin, St. Peter, St. Paul, St. James, St. Stephen, and the bishops St.

Aignan and St. Euverte. As we have seen (p. 230), the centre of a mediaeval bridge was marked invariably by a cross. To-day, on the Continent, this old religious custom

gives grace to a few bridges, and I value a large photograph

of Trier Bridge over the Moselle, where the Virgin is enniched above the middle buttress, and where a crucifix, flanked by two columns, rises above the parapet. Yet we must not rush to the conclusion that this old sacred custom had its original source in the Christian

religion. At first it may have belonged to a faith in evil spirits, whose power for mischief may have seemed to be increased by every roadway that enabled them to pass over running water. I have by my side the photograph of a steep bridge in Western China, at Shih-Chuan, and here

below the middle of the parapet is a small image of stone

representing a tutelary god ! To me it is a curious little bit of rude sculpture, all head and stomach and truncated thighs. Its position on the bridge corresponds with that of the cross on mediaeval parapets—a fact of great interest.* Brangwyn depicts, in a very brilliant pen-drawing, a Chinese bridge larger and finer than the one at Shih-Chuan,

* The photograph belongs to the London Missionary Society. The bridge itself has points of interest quite apart from the idol. There is a single arch of a horseshoe form with long and narrow archstones. The shelving parapets are decorated with small knobs of stone, and they do not rise to a gable point, like those in the Spanish

variety of gabled bridge ; there is a flat space at the summit, and below the middle

of it the small idol is placed. 248 A BOOK OF BRIDGES

but there is no image, so I set great store by the evidence of idolatry in the smaller bridge. Again, the province of Sichuan (pronounced Sit-you-on), in Western China, preserves another ancient custom.

STAIRCASE BRIDGE IN CHINA

When a flood threatens to overwhelm a bridge, and

particularly a bamboo suspension bridge, which is a common thing in the mountains, " the local official and the people throw a living pig into the river, to stay the rising * water : the pig disappears, and the flood goes on."

* From information sent to me by the Rev. O. M. Jackson, who for more than twenty years has worked as a missionary in Western China. EUROPEAN, PERSIAN AND CHINESE 249

This dire superstition is far more primitive than the idol fastened below the parapet of a Chinese bridge ; and so, perhaps, we find in these things a parent emotion and

its improved offspring. Perhaps : for Superstition rests on dark foundations ; we know not precisely where it fades into a belief that is genuinely kinder. Ill

pass on to some important topics that worry WEa writer because they cannot be arranged in a neat scheme. Some of them are technical, but everybody will be able to understand their bearing on the main subject. We have seen that fords gave place to bridges very slowly, even in some neighbourhoods where the Church was exceedingly active, as at Rochester.* Can you explain why? There were a good many reasons, and

among them is the fact that it was a long time before bridges won a good reputation among the people. Wood being abundant everywhere, they were timber bridges at

first, and rudely built ; many of them were carried away by storms, as Matthew Paris related in the thirteenth century. So people set their hearts on the greater safety of stone

bridges ; but money was difficult to collect, and stonework a great deal more than timber bridge cost ; and no could be built until permission had been gained from the King, often after tedious negotiations. Further, the lands through which rivers flowed were owned at times by rival noblemen,

* Take the dates of a few important bridges in Lancashire. Time of King John, Lancaster Bridge; 1225, Preston; 1305, Warrington; 1365, Salford; 1372, Stockport; and 1490, Garstang Bridge. The first I^ncashire bridges were but narrow structures for foot and horse. Some had very high single arches, and those

with from four to six spans were steep and lofty ; they seemed to fly away from spates. 250 EUROPEAN, PERSIAN AND CHINESE 251 who put a veto on the project, either in a spirit of perverse antagonism or because a stone bridge might benefit one

landlord more than another. And it was easy for the stronger man to explain his antagonism in a reasonable manner, for he could say that the cofferdams used in grounding piers diverted rivers from their channels, causing inundations. This objection seems to have been raised pretty often, as many piers were grounded in a very primi-

tive fashion, just by throwing down stones and cement till a bed of masonry rose above water-level. In the Ballad of Abingdon Bridge, written by Richard Fannande Iremonger in the thirty-sixth year of Henry VI

(1458), we find most of the difficulties that attended mediaeval bridge - building. Till the fourth year of

Henry V (14 17) the townsfolk of Abingdon and Culham had nothing but a ford, which could not be passed after a storm of rain or after a thaw. Yet Abingdon lived under the shadow of a great monastery, and roads were constructed from her streets to the ancient or Roman highways. Not even a timber bridge preceded the charming stone one that charity built in 141 7, the very year in which Henry V sailed from England with 16,000 men and ravaged Nor- mandy. But in the Middle Ages most people regarded bridges as we in our ignorance regard hospitals, as useful and necessary things to be supported by charitable doles, and not by district rates. To beg is a degradation, no matter what the cause may be, and many a small town could have built for itself a bridge but for the ruling custom — — ;

252 A BOOK OF BRIDGES that taught it to be a mendicant. Culham and Abingdon waited a very long time before almsgiving got rid of their dangerous ford. The Abbot gave his aid, and Geoffrey Barber paid a thousand marks to the workmen, and Sir Peris Besillis, Knight, provided the stone, and " the gode lorde of Abendon left of his londe, for the breed [breadth] " of the bridge, twenty-four fote large :

It was a greet socour of erthe and of sonde, And yet he abated the rent of the barge. An C. Pownde, and xv", was truly payed By the hondes of John Huchyns and Banbery also,

For the waye and the barge, thus it must be sayed.

" But I am happy to add that " the Commons of Abendon had to do something for themselves. It was "set all in one assent that all the brekynges of the brige the town bere schulde." In other words, charity had produced a free

town bridge, leaving the inhabitants to pay for its upkeep. During the building of this pretty structure an un- successful attempt was made to ground the piers while eleven men baled water from the river. Then a dam was built, and trenches were dug to prevent the water from overflowing the dam. This I gather from the ballad, but the wording is not at all graphic in any technical matter.*

* On the other hand, there is a good social picture, showing that workmen in those days fed very well, though they could not afford to subscribe to the building of

a bridge : Wives went out to wite [know] how they wrought

Five score in a flock, it was a fayre syght. In broad clothes bright white bread they brought, Cheese and chickens clerelych a dyght [prepared]. —

EUROPEAN, PERSIAN AND CHINESE 253

We are not told why cofferdams * were not tried. In the Middle Ages cofferdams were known as brandryths or

brandereths ; by this name they are mentioned in the Contract Deed for the building of Catterick Bridge over

the Swale, a.d. 1421 ; and they were large enough to obstruct most rivers, for they had to surround enormous piers, and the thickness of their sides was never less than

from four to six feet. It is interesting to note, in this connection, that during the construction of Old London Bridge,

between 1 176 and 1209, the Thames "was turned another way about by a trench," which, according to Stow, began east near " Rotherhithe, as is supposed, and ended in the west about Patricksey, now termed Battersea." In those days no embankments controlled the Thames at London ; wide shores, littered with the odds and ends of a waterside

life, were playgrounds for the ebb and flow of the tidal and the main purpose of the " trench " or canal waters ; was to lessen the risk of floods while the huge piers were being founded. Stow's words give us to understand that all the

* Cofferdams are embankments which surround the site so as to exclude water

from it. " They are formed in general by driving two rows of piles round the site so

as to enclose between them a watertight wall of clay puddle ; in depths of less than

three or four feet, where there is little current, a simple clay dam may be used. In greater depths, the timber walls consist of guide piles at intervals, with some form of

sheet piling between them ; in extreme depths the timber walls may be composed of stout piles driven in side by side all round. The dam must be sufiSciently strong to bear the pressure of the water against the outside when the space enclosed has been

' pumped dry. . . . The Cours de Fonts,' at the School of the Fonts et Chauss^es, states that a cofferdam need never be made of greater thickness than from four to six

feet, as the interior can always be sufficiently stayed inside. This method of founding

is now seldom practised ; it is costly and causes great obstruction in the stream." Professor Fleeming Jenkin. ;

254 A BOOK OF BRIDGES

water in the Thames "was turned another way about" ; a very important feat of civil engineering. Perhaps the pur-

pose of the canal was not so thorough perhaps it drew ; from the river sufficient water to lower its normal level by several feet and to diminish the force of the tidal current. In any case, however, Stow's evidence has great interest. One of Brangwyn's animated drawings, the Pont des Consuls at Montauban, comes in here to illustrate the many troubles of mediaeval bridge-building. In 1144, when Montauban passed from an unknown village into a known

town, its patron or founder, Alphonse Jourdain, Count of Toulouse, commanded that a bridge should be made at

once, and that the little township should keep it in repair but, somehow, for many generations, nothing was done. Sometimes poverty was pleaded as an excuse, and some-

times the Albigeois wars were blamed ; but at last, in 1264, the good men of Montauban ventured on a little action. Indeed, they stretched themselves yawningly, and said that a bridge over the Tarn would be a boon indeed. Their ferry was a slow nuisance, we may presume, and their trade ought to be increased by better communications. For twenty-seven years they repeated these truisms ; then, in

1 29 1, they bought the island of Castillons or of Pissotte to serve as a foundation for several piers. Tired by this un- wonted exertion, Montauban wished to take a long holiday, but Philip the Fair came forward and asserted himself as a king. A bridge over the Tarn must be built ! It should have three fortified towers, one at each end, the other in —

EUROPEAN, PERSIAN AND CHINESE 255

the middle ; and these towers were to be garrisoned by royal troops, so that no harm should happen to the king's authority. In order to collect money for the bridge- building a tax was to be levied on all visitors to Mon- tauban, and two consuls were to overseer the work. His Majesty chose Mathieu de Verdun, a citizen, and Etienne de Ferrieres, who was keeper of the town. They seemed to be honest men, but funds collected for the bridge were used

for other purposes, and I know not if this action was justified. It was in 1304 that Philip the Fair gave his instructions, and the bridge was not finished till 1335. Still, the dilatory township had achieved a very fine work of art, noble in design and very well constructed.

It is a brick bridge, 250 m.* 50 cm. in length. The bricks are excellent in quality, and measure 50 centimetres in thickness, 40 centimetres in length, and 28 centimetres in width. The roadway is nearly flat, and its height above the level of the Tarn is 18 metres. There are seven pointed arches with

an average span of 22 metres ; and the six piers armed with cutwaters at both sides are 8 m. 55 cm. in thickness. Note how the spandrils are pierced with high arched bays to facilitate the passage of water during floods. These relief arches were copied from Roman models. As for the defensive towers they exist no longer, but the strongest one

kept watch and ward over the entrance across the river ; it was square in shape, and its summit was a crenellated platform fringed with machicolations. The other end tower

* A metre = I '093633 yards, or 39*37079 inches ; a centimetre = 0-3937 1 inch. 256 A BOOK OF BRIDGES

the one on the town side—was also square in form, while the central defence was triangular. It stood on the middle buttress on the side looking downstream, and the lower part

of it was used as a chapel dedicated to St. Catherine. A flight of winding steps went down to a postern, cut through

the buttress a little above water-level ; and at the other side of the pier, just below the arched bay, was an instrument of torture, a see-saw that carried an iron cage in which blasphemers were ducked in the river. The Pont des Consuls has one quality that Englishmen

ought to study with the greatest care ; it is in scale with a great river. To build a vast bridge for a little township was in part a just tribute to the beauty of a noble site, and in part a prophetic compliment paid to the future history of Montauban. How differently we have acted in our London

bridges ! We have disgraced the Thames with the Railway Viaduct from Charing Cross, for instance, and neither Waterloo nor London Bridge does justice to the size of our Nation-City. There are three or four good bridges on the Thames, notably those at Maidenhead and Richmond, but they are nothing more than delicate works of refined engineering. Not one is inspired by awe, the only feeling that can bring home to our minds the wondrous grey antiquity of the Thames and the immensity of London. So we have feared to be great in the historic symbolism of bridge-building, unlike the citizens of Montauban, who were

lifted far above their indolence by a brave inspiration as ample as was the Tarn after a flood. < ai

i; IB

P o

O ti (J PtH

K 2; Ed - o g H cd ° ^ rS w o'z,

EUROPEAN, PERSIAN AND CHINESE 257

In 1823-4, when George Rennie designed New London Bridge, London was probably two hundred times as big as was Montauban in the fourteenth century; and certainly the Thames was not inferior to the Tarn as a historic inspiration. Yet Rennie failed to understand the importance of being large in scale. In less than fifty years his work was "insufficiently wide for the traffic";* and since then, on a good many occasions, we have been asked to disfigure London Bridge with overhanging footpaths. " London can well afford to pay for new bridges, but can by no means afford to part with a single object of real beauty."* For Rennie's bridge, despite all errors of scale, has points of charming interest. Her roadway has a graceful curvature that delights the eye, her arches have an excellent shape, and the variation in their size could not well be bettered.

Later we shall see (p. 325) that much money was ill-spent on hammer-dressing the whole external face of the masonry ; but an engineer with a very weak feeling for scale was afraid to use either scabbled stone or stone with a rough- axed facing. Rennie learnt all that he could learn by studying fine models of style, such as the Roman bridge at Rimini, but his own equipment as an artist was terrene. Would that we had in England an old bridge equal to

* Professor Fleeming Jenkin, Ninth Edition of the " Encyclopaedia Britannica." t The centre arch has a span of 152 ft., and rises 29 ft. 6 in. above Trinity high- water mark ; the arches on each side of the centre have a span of 140 ft., and the abutment arches 130 ft. Total length, 1005 ft. ; yridth from outside to outside, 56 ft. height above low water, 60 ft. Centre piers, 24 ft. thick. Materials : the exterior stones are granite, the interior, half Bramley Fall and half from Painshaw, Derbyshire.

s 258 A BOOK OF BRIDGES

the Pont des Consuls ! Would that old London Bridge had

been delivered down to our sixpences and shillings ! Yet I suppose we must consider ourselves lucky in the fact that historic bridges in Great Britain, though much inferior to those on the Continent, are fairly numerous in districts

where there has been but little increase of traffic. We possess three bridges with defensive gateways (Stirling,

Warkworth, and the Monnow Bridge at Monmouth) ; five with chapels, or with relics of chapels (St. Ives in Hunt- ingdonshire, Derby, Bradford-on-Avon in Wiltshire,

Wakefield, Rotherham) ; and many good specimens exist of bridges with angular recesses built out from parapets and forming part of the piers.* These recesses were designed not only as shelter places for wayfarers, but because they lessened the cost of production, inasmuch as they gave

width to narrow footways ; and so their value in an old

bridge is very similar to that of bay-windows in cottage rooms. Very often the modern engineer has misunderstood their origin, and, regarding them as decorations, he has used safety recesses to ornament his wide bridges, just as he has put battlements on iron parapets and stuck machicolations on defenceless gateways. Brangwyn has drawn for us three or four big Gothic bridges with safety recesses.

Among them is a fine structure over the Main at Wurzburg,

* For example, King John's Bridge at Tewkesbury ; Barden Bridge and Burnsall Bridge in Wharfedale; the Old Dee Bridge at Chester; Huntingdon, Bridgenorth, Baslow, Froggall, Brecon, and Llangollen. There are many others. EUROPEAN, PERSIAN AND CHINESE 259

in Bavaria ; there are eight arches, and the length is 650 ft. This bridge dates from the year 1474, but his adornment with statues of saints belongs to later times. Indeed, the architecture and decoration take us from the end of the

THE BRIDGE OVER THE MAIN AT WURZBURG IN BAVARIA (1474-1607)

Middle Ages to the year 1607, when the spirit of the Renais- sance was active and generative. Here is an old defensive bridge that does not resemble a common man-at-arms : in him there is a fine courtesy, as of a

knight long used to the etiquette of tournaments ; but yet the technical inspiration is rather inferior to that in his great 26o A BOOK OF BRIDGES rival, the Moselle Bridge at Coblentz, built in 1344, by the Elector Baudouin, and charmed with a mellow grace that imparts a rare distinction to the vigour of fourteen bold arches. The Moselle Bridge is 1 100 ft. long, or ninety-five longer than London Bridge. There is but one fault, and this one fault belongs to the Middle Ages : the ten piers obstruct the river too much, and two or three of them might have been omitted without harm to any strategic consideration. In the Middle Ages almost everything was looked at from the standpoints of attack and defence. Bridges as well as soldiers needed armour, so their gateways and towers were built in a military fashion, and at times curious traps were devised along the footways. For example, con- sult the " Pacata Hibernia," and you will find an engraving of Askeaton Bridge,* with a sort of hangman's trapdoor at each end of the footway. In 1586, or thereabouts, Askeaton

Bridge had another peculiarity : a castle stood close to it on an island in the river; and between the castle and the bridge was a fortified platform with two gateways. It happened often, in mediaeval times, that one arch was a drawbridge. Take Old London Bridge as an example. One of her twenty arches—the thirteenth from the City end —was a toll-gate for merchant shipping, and a drawbridge to gap off enemies from the town. It served this latter

* This valuable reference was brought to my notice by Mr. H. T. Crofton, an able pontist, who sent me his notes on bridges, asking me to cull from them whatever information my own research had missed. A hobby is the only altruism. EUROPEAN, PERSIAN AND CHINESE 261 purpose in 1553, when Sir Thomas Wyatt and his insur- gents tried to enter London. Everybody knew which was the movable arch, because it was connected in all popular talk with the tower that rose beside it, a terrible and grue- some tower, for on its summit executioners displayed the heads of decapitated persons, who ranged from common bandits to the great Sir Thomas More. Some defensive bridges in Old England had an important look as late as the reign of George III. This applies to the Welsh Bridge at Shrewsbury, which had a noble tower at the entrance that looked towards Wales.

Perhaps it belonged to the reign of Edward I, as a statue of Llewellyn was placed over one of the arches. At the present time our fortified bridges are minor specimens. The "auld brig" over the Forth at Stirling, once " the key

of the Highlands," is the most interesting architecturally.

He still retains a defensive gateway at each end, and his four arches, now closed to traffic, have a bold and pleasant rhythm. They date from the last years of the fourteenth century. From this century also Warkworth Bridge comes

to us ; it is a smaller structure, with a triangular recess at each side, projecting from the parapet into the central pier.

The gate-tower is at some little distance from the abut-

ment ; it has a low and narrow archway under which carters swear unhopefully, believing that their wagons will stick fast. A person who was present on the occasion told

M. J. J. Jusserand that a gipsy's caravan, not long ago, was stopped at the tower on Warkworth Bridge, and waited 262 A BOOK OF BRIDGES

there while the pavement was being hollowed out to make the passage deep enough for a safe journey.

The pier midstream is triangular, and almost as sharp as an arrow-head. This shape is very common in mediaeval

cutwaters, but it belongs to a technical routine which cannot be regarded as practical. Floods cannot eddy around the

flat surfaces of a triangle; they are cut into waves that soon break with an increasing force against the piers and spandrils. On the other hand, when a cutwater is shaped

like a Gothic drop arch, or like a tierce-point arch, it, meets the current with a much bolder wedge of stone, whose curved sides are better playgrounds for water in spate. Cut- waters of this improved sort are uncommon in mediaeval bridges, but some are to be found in French work of the Limousin.

VioUet-le-Duc was the first critic who called attention to this technical matter, and no pontist should fail to note how cutwaters are designed. For example, in a bird's-eye view of the bridge at Avignon the buttressed piers jut out on each Side beyond the narrow footway, looking like boats

that support a long line of planks ; and I have no doubt that Saint Binizet had in mind this figure of boats when

he planned his roadway over "the arrowy Rhdne." It is far from my wish to compare the little Warkworth Bridge

with this French masterpiece, but let us note in its cutwaters a similar character. Again, when you remember that Warkworth Bridge belongs to the fourteenth century, do you not expect to find EUROPEAN, PERSIAN AND CHINESE 263 in it the pointed vault, whose lighter grace is among the most beautiful things both in Eastern and in mediaeval architecture? Yet the two ribbed arches are segments of circles. For many a generation Northern England has been famed for three things—a long-headed thrift, a discontent that is said to be a Radical in politics, and a stub- born hatred for any new knowledge that attacks the dull mimicry of customs. It is to Lancashire, for instance, that you must go if you wish to study in old packhorse bridges the retention of Romanesque forms. A considerable number are described popularly as Roman bridges, probably because they are found on the old pilgrim ways, which, after the Reformation, were scorned as Roman Catholic. For some reason or other Northern England welcomed in bridges the bluff economy of ribbed arches, while neglecting the more gracious thrift of Early English or pointed vaults. These are easier to build because they need lighter centres or arched scaffolds, and their thrust being less powerful than that of round-headed arches, they require less bulk in the piers. Some writers say that pointed arches interfere with sailing-boats, but this depends on the

size of their spans. At Montauban there is room enough for ordinary boat traffic under the Pont des Consuls. The Pont Valentr6 at Cahors has ogivale arches, and in one fine drawing Brangwyn studies the technique of their construction. For instance, the embattled piers are trian-

gular, and each of them is pierced transversely by a bay or

passage, which is put on a level with the springing of every 264 A BOOK OF BRIDGES

arch. Below this bay are three holes ; and another line of holes runs across the under surface of the arch beneath the springing.* Now, these holes and the bays have a great technical interest, they remind us how the Pont Valentr^ was built in the thirteenth century. With their help simple scaffolds were erected. The first step was to thrust fir saplings through the holes in a pier till they jutted out on each side ; then they were covered with planks and used as footbridges by the workmen, and also as resting-places for barrow-loads of dressed stone, which were lifted up by movable cranes. The service of the masons was effected through the bay in a pier, and the centring of every arch was fixed in those other holes which Brangwyn has represented in his vivacious water-colour. Not more than two arches were built at the same time. At any moment, in those rude, warfaring periods, work might be interrupted by strife, and its progress was so very slow that it took from ten to thirty years to bring a bridge to completion, usually after a continuous fight against money troubles. Many a hint on economy was borrowed from the Romans, whose enterprise was far in advance of their current cash. Piers that look marvels of solid masonry may be nothing more than shells filled with beaten earth and gravel ; and those passages through the piers at Cahors have one thing in common with the relief arches that pierce

* springing. The plane of demarcation between the ring and the abutment is called the "springing" of an arch. A "ring" is the compressed arc of materials " " known as archstones or voussoirs ; and the springing marks the place where a ring starts out on its upward curve from a pier or from an abutment. > b H a £ o

EUROPEAN, PERSIAN AND CHINESE 265 the spandrils of the Pont des Consuls at Montauban : they enabled the builders to be thrifty. In a Persian bridge (on the way between Resht, on the Caspian Sea, and Teheran, the capital) thrift hollowed the spandrils into chambers, some of which were used by travellers. This bridge carried a rough highway over the Karedj River, which runs down from the Elburz Mountains between Kasvin and Teheran, and disappears in a gravelly plain. In 1874 the Karedj Bridge was studied in measured drawings by J. RomillyAllen, andeighteenyearslater(Novem- ber 19, 1892) the drawings were published in " The Builder," with a most valuable description. Let us linger for a few minutes over Romilly Allen's research, as the technique of old Persian bridge-builders has points in common both with Gothic methods and with modern practice also. Some mediaeval spandrils are hollow, for example ; and a very noted French architect of the eighteenth century, Perronet, not only left empty spaces behind the haunches* of an arch, but made tunnels in piers, after the manner used by Pope Sextus IV in the Ponte Sisto. And the bridge of Glasgow over the Clyde has tunnelled piers, so this technical detail has a long and entertaining history. In the Karedj Bridge, then, the builders had to solve three or four difficulties that strained the usual penury of Persian finance. The river itself must have been a constant trouble while the bridge was being constructed. A rapid

* The haunches of an arch are those parts that lie midway between the springing and the crown : the crown being the summit of a ring. ;

266 A BOOK OF BRIDGES mountain torrent with precipitous rocky banks, it pours through a gorge of rock, and at one spot only it forms a good foundation for a wide pier ; but this spot has a situation that divides the bridge into inharmonious parts, making symmetry impossible. Allen's drawing shows both arches,

one with a span of 23 ft., the other with a span of 72 ft. 9 in.

and between them is a vast pier not less than 31 ft. gin. wide. Forty-six feet separate the highest point of the

parapet from water-level ; and from water-level to the peak

of the big pointed vault is thirty-seven feet. In width the

bridge measures thirty feet across the outside of its parapets,

and twenty-six feet across the roadway, so there is room for a great deal more wheeled traffic than Persia has yet developed along her dusty trade routes.

From this description it is evident that the builders had a stiff job. Timber for centring has ever been scarce in

Persia* ; so in Persian bridge-building the usual plan is to set up a light scaffold just strong enough to bear its own weight and a few rings of brickwork. After a single rib of bricks has been made, other bricks are dabbed against the

first set, more being added at the abutment ends than in

the centre of an arch ; and so, as the work goes on, the arch grows to be self-supporting, like a cantilever bridge. When the middle part of the span has been covered over, the remaining courses at each side are completed with bricks set at right angles to the others. In looking upward at the under surface of a Persian vault a pontist sees that the courses of brick go in two directions, one parallel to the EUROPEAN, PERSIAN AND CHINESE 267 central axis of the bridge and another at right angles. Such is the Persian method of building a brick arch ; its main object is to evade, without too much risk, the cost of heavy centring, timber being so difficult to get and so expensive to carry about.* In the four bridges that Romilly Allen studied, between Resht and Teheran, the building was brickwork, and the

bricks were rather like Roman tiles ; they measured 10 in. by 10 in. by 2^ in. At Kiredj the mortar joints were about i in. thick, so that twenty-four courses of bricks with

their mortar joints built a wall about 6 ft. 2 in. high. At the thinnest part of the big arch there were only three

bricks, giving a thickness of 2 ft. 6 in. ; further on there were five bricks, and two more were added at the abutments, where the walls were 7 ft. 6 in. thick. Here is much economy, for thick joints of mortar are not praiseworthy

(p. 175) ; and thrift is very noticeable in other details of the workmanship. Beneath the roadway were two chambers with pointed barrel vaults, which were built partly to relieve the haunches of the big arch, and partly to save materials.

On one side of the arch the chamber was about 12 ft. high ; its length, varying with the curve of the voussoirs,and extend- ing across the abutment, ranged from 27 ft. to 49 ft. On the pier side of the big arch the chamber was not so long, but its height was 1 2 ft. ; and the pier itself was chambered in its upper part and pierced below with a Tudor-like arch about 14 ft. wide and 1 1 ft. 6 in. high. The chamber above

* "The Builder," November 19, 1892, p. 394. 268 A BOOK OF BRIDGES had a cone-shaped roof, and at each side of it were three square-headed windows that measured 3 ft. 6 in. wide by 6 ft. high. I am speaking in the past tense, for I know not whether this bridge is still in use ; but now we will return to the present tense in a short quotation from Romilly Allen :—

" This chamber appears to be ... a temporary living- room for travellers. It . . . communicates with the cells above the haunches of the arch by an opening 4 ft. 6 in. high. The inner room is probably intended to afford sleeping accommodation. The living-room is approached by a staircase in the thickness of the wall leading up from the top of the pier. The Persian name for an upper chamber of this

' * kind is bala-khana,' literally ' a house up above.' "

Perhaps the finest bridge in Persia is the far-famed Ali Verdi Khan at Isfahan. Ali Verdi Khan was the general of Shah Abbas, and his bridge, if not the greatest in the world, has no rival that

excels it in stateliness. As Lord Curzon has said, it alone

is worth a visit to Isfahan to see. I know it in photographs only, and in written descriptions, but I feel its beauty and

magnificence. In many respects it resembles the Pul-i-

Khaju (p. 213), but it is a great deal longer, and no pavilions rise above its tiers of arches. To my mind the pavilions of the Pul-i-Khaju have an architectural value that cannot be

rated at too high a level. So I miss their grace in the Ali

* "The Builder," November 19, 1892, p. 394. EUROPEAN, PERSIAN AND CHINESE 269

Verdi Khan, though this noble structure ought not to be criticised—except in an ashamed whisper. There is a gateway at the north end, so we must place the Ali Verdi Khan among the minor defensive bridges. A paved ramp or causeway leads from a great avenue to the

THE BRIDGE OF ALI VERDI KHAN OVER THE ZENDEH RUD AT ISFAHAN, PERSIA

gateway ; and then a visitor has 388 yards to walk before

he reaches the far end. The main road is paved, and its width is thirty feet. Upon each side is a gallery, or

covered arcade, two and a half feet wide, which is pierced through the outer wall of the bridge from one end to the other; it communicates with the main road by frequent 270 A BOOK OF BRIDGES arches, it opens by similar arches—over ninety in number —on to the river view, and here and there it expands into large chambers, as we see in Brangwyn's pen-drawing. The chambers used to be decorated with " not too proper paintings," done in the time of Abbas II. At both entrances the AH Verdi Khan is flanked by round towers, and staircases in the towers go up to a fine platform which in earlier times was a favourite promenade ; but now it is disfigured by telegraph poles, the modern spirit everywhere having an unrivalled vulgarity.* " Similar staircases, cut in the basements of the towers, and also at regular intervals in the main piers, conduct from the road level to a lower storey, where, but little elevated above the bed of the river, a vaulted passage runs along the entire length of the bridge, through arches pierced in the central piers, crossing the channel of the river by huge stepping-stones planted in its bed. Colonel Johnson gives the dimensions of these transverse arches as ten feet span and nine feet high ; and of the main arches (thirty-three in number) which they bisect, as twenty feet span and fifteen feet high, separated by piers eleven feet thick. There is thus a triple promenade on this remarkable bridge—the vaulted passage below, the roadway and lateral galleries above, and the open footpath at the top of all. I should add that the upper part of the bridge is of brick, the piers and towers are of stone. "t

* If Caesar's bones were found they would be sold at Christie's to a tradesman millionaire.

t Lord Curzon's "Persia and the Persian Question," 1892, Vol. II, pp. 45-6. EUROPEAN, PERSIAN AND CHINESE 271

There is no European structure akin to this, but for a long time Rothenburg on the Tauber has been famous for a

two-storeyed bridge ; also we know that some modern commercial bridges have an upper road and a lower one, like the High Level Bridge at Newcastle. In every case the idea was suggested by the Roman practice of building aqueducts in tiers. IV

yA ND now let us give all our attention to the more / % military bridges. Brangwyn has studied them

A. ^ with the utmost care and interest ; there are but few variations of the war-bridge that his art has not yet represented. Let us see, then, what his research has found.

I. This bridge from Bhutan has the same technique as

the cantilever bridges of Kurdistan (p. 74) ; but the gateway towers mark an advance. They are militant works, partly because they control the traffic, and partly because they are open below the eaves for archery and for other defensive warfare. Brangwyn suggests that gateway towers of this kind may have been brought to India by Darius Hystaspes (512 B.C.) or by Alexander the Great (327 B.C.). On this point there is no evidence. On the other hand, there seems to be no doubt that the timber gateways on Roman bridges in England, as in Gaul, were prepared for defence, though their main use was to limit the freedom of a public thoroughfare, invariably after sunset, and during the day in times of unrest. This was the first aim of defensive bridges, so the gateway towers in Bhutan are suggestive things to study. They are too light in structure to give us an idea of the bold and stern gateways built by the Romans with newly-felled trees ; but yet they help us 272 EUROPEAN, PERSIAN AND CHINESE 273 to realise vaguely what every young civilization must have done when it learnt from a free use of bridges that foes as well as friends were eager to pass without danger across rivers.

PRIMITIVE TIMBER BRIDGE IN BHUTAN, INDIA

Again, the earliest defensive bridges had another point in common with the primitive carpentry of Bhutan : they were made with tree-trunks resting on supports, and, when necessary, a part of their footways could be removed. Diodorus Siculus wrote a flaming, account of a great bridge built by Semiramis over the Euphrates, rather more than —

274 A BOOK OF BRIDGES

two thousand years before the birth of Christ. After making due allowance for the frolicsome legends with

which ancient history is enlivened, there are things worth noting in the enthusiasm of Diodorus. Herodotus attributed the same bridge not to Semiramis but to Nitocris, so evidence can be drawn from two authors. Pontists gather from the evidence that stone piers were connected by planks, which were taken up at night, just as the central part of a bridge in Bhutan could be removed as a military precaution. Diodorus draws entertaining pictures, and tries to prove that bridge-building was far advanced twenty centuries before our era began. If Semiramis collected architects and craftsmen from all the known civilizations, until at last she had at her beck and call a great host of capable servants, it is not surprising that she was able to build a fine bridge as well as to enlarge Babylon. The piers were grounded in deep water; their ends were protected by triangular buttresses ; their stones were clamped together with thick bars of iron, which were soldered into the stones with molten lead. As for the superstructure, it was thirty feet wide, and all of wood—cedar, and cypress, and palm tree. In all this, probably, there is some exaggeration, but a famous bridge did exist at Babylon, and a combination of timber with stone piers was the most logical development from the simplest natural bridges the fallen tree and the bridge of stepping-stones. Also it is likely enough that metal clamps were employed ; iron was in vogue, and by using it in stonework under water an EUROPEAN, PERSIAN AND CHINESE 275 architect would feel less mistrustful of his cement and less anxious about the risks of floods. Further, it is quite probable that the entrance at each side was protected by a sort of drawbridge, because the times were lawless. Semi- ramis herself was put to death by her son Ninyas, and Ninyas in his turn was murdered.* An important timber bridge with stone piers belongs to a handicraft more advanced than that in the bridges of

Bhutan ; it comes between the primitive inspiration of the Bhutan carpenters and the simplest arched bridges with plain gateway towers. It has not yet vanished from Europe, for a Gothic example exists at Thouars, in Deux- Sevres, France, according to a photograph sold by Neurdein, of Paris. Another example crosses the Guadalaviar above Albarracin, in Aragon ; and let us remember also that the tree bridge resting on stone piers has influenced some metal viaducts, such as Runcorn Bridge, near Liverpool, dating from 1868. In principle the construction is the same, timber being displaced by metal. At the end of its approach arches, where the metalwork begins, Runcorn Bridge has two gateways, each with twin turrets, and a great display of battlements and of machicolations. Although this make-believe of war has a farcical bad taste, like the assumed erudition that keeps dummy books in a * Accxirding to some writers, the earliest known arches of handicraft—pointed, and round, and even elliptical—are Babylonian, but I do not care to be so dogmatic. Dates very often are as elusive as dreams. But the influence of Babylon was, doubt- less, very great the traditions of it on the building arts ; perhaps we find even in the elliptic vault of Chosroes' great hall at Selucia-Ctesiphon. This vault, dating from the sixth century a.d., was a forerunner of St. Benezet's elliptic arch (p. 8i). 276 A BOOK OF BRIDGES

library, yet Runcorn Bridge has a well-defined interest : it mimics a phase of military architecture which was evolved from such carpentry as to-day we find in Bhutan.

DEFENSIVE BRIDGE AT SOSPEL

2. Gateway Bridge at Sospel, in the Italy of France. This drawing illustrates very well the transition from the primitive bridges of Bhutan to a simple arched bridge

guarded by a gatehouse of control. It is a poor little house, its architecture being less intelligent than that in

the Bhutan gateway towers. In these there is cleverness enough to prove that the bridge represents a stale old ;

EUROPEAN, PERSIAN AND CHINESE 277 custom which has lagged behind the advance of handicraft, whereas the bridge at Sospel is far in advance of the tawdry little gatehouse. A span separates the gatehouse from the town, and the roadway is not on the same level above both arches.

AT NARNI IN ITALY: THIRTEENTH CENTURY

3. A Broken War-Bridge of the Thirteenth Century, Repaired with Timber. A very valuable illustration, and for several reasons. The gatehouse with its pointed archway is unusually tall 278 A BOOK OF BRIDGES

and the machicolated box below the slightly gabled roof is unique in my experience. The holes above this defensive work are partly for ventilation and partly for crossbowmen,

whose fire would "puncture" an attack on the right entrance of the bridge, There is but one arrow-hole on the

first storey, and I should not care to shoot through it while molten lead or boiling oil came sizzling down in two

streams from that machicolated box. I do not know why the gate-tower was made so very high, but suppose that its engineer wished to build a place of vantage from which the movements of an attack could be seen afar off, beyond the entrance gates. In any case it failed to save four of the

arches from gunpowder wars ; and note the restoration ! Could anything speak to us more clearly of the primitive bridge with stone piers united by rough timbering ?

4. The War-Bridge at Orthez. In the wizard country of the French Pyrenees there are some very notable bridges, such as the Pont Napoleon, near Saint-Sauveur, the Pont d'Espagne, beyond Cauterets, and the Vieux Pont at Orthez. To study these three works, side by side, is to learn that modern bridge-building has achieved in stone a few great works as daring as any that the Middle Ages produced. The Pont d'Orthez has a graceful distinction, and for nearly six hundred years it has borne the formidable spates of the Gav-de-Pau. In the tierce-point arches, and particularly in the largest one, there is good drawing the ; spandrils are relieved from dullness in a simple and effective manner that gives support to the base EUROPEAN, PERSIAN AND CHINESE 279 of parapet perhaps the roadway dips too much on the the ; left-hand side, and the fortified tower is too slim to be in scale with the broad pier from which it ascends. Add

WAR-BRIDGE OVER THE GAV-DE-PAU AT ORTHEZ IN FRANCE

twelve inches of width to the side face, and see how different the tower looks ! In fact, Brangwyn has done this instinctively, as I find by comparing his vigorous pen- sketch from nature with my photographs. The tower has but one machicolation, it guards the base of the pier from boat attacks and scaling ladders ; but the spy-holes below 28o A BOOK OF BRIDGES the roof served many purposes, including those for which machicolations were invented. A vaulted passage conducts the road through the tower ; it is lighted on the far side by an opening called the Priests' Window, because the priests and monks of Orthez jumped through it into the river, driven to this act by the orders of Gabriel de Montgomery.

Such is the legend, and there's not a word of history in its drama. For the rest, Orthez has seen no war since the great combat of February 27, 1814, when Wellington prepared the way for the battle of Toulouse by defeating the French, under Soult.

But this old bridge, with all its charm and interest, is eclipsed as a work of art by the Pont Napoldon, whose gigantic arch, in a very noble curve, spans the rocky and precipitous gorge of the Pas de I'Echelle, along which the furious Gave de Gavarnie pursues a foam-bubbled race against time, sixty-seven metres below the bridge. Here is a masterpiece that rivals the Puente Nuevo at Ronda, thrown across the tremendous chasm of the Guadalvia.*

5. The Monnow Bridge at Monmouth.

* Brangwyn has drawn for the edition de luxe the bridge at Ronda, which dates

from 1 761. Its architect, Jose Martin Aldeguela, was even more unfortunate than were

Peter Colechurch and the good Saint Bdnezet ; these masters died before their work was complete, while poor Aldeguela fell from his bridge and was dashed to pieces. Two other bridges, one Moorish and one Roman, cross the chasm at Ronda, but at the upper end where the depth is less prodigious; so their architects had easier problems to solve, and yet they did not equal in any respect the heroic inspiration of Aldeguela. Mr. Edgar Wigram has said that although Ronda Bridge owes much of its effect to its extraordinary site, yet an extraordinary piece of architecture is neces-

it is sary to command the site ; the triumph of genius over nature that we feel both at Ronda and in the Pont Napoleon. EUROPEAN, PERSIAN AND CHINESE 281

This bluff old gate-tower is a bolder specimen of mediaeval work than the smaller one at Warkworth. We are lucky indeed to possess a war-bridge which has suffered so little from time and trade and highway officials. If you compare

WAR-BRIDGE AT MONMOUTH it with the Brangwyn water-colour of Parthenay Bridge, over the Thouet, you will be better able to put the Monnow Bridge in its proper place as a work of defensive art. The

French tower is far and away superior: it has scale and dignity: it is a work of architecture as well as an instrument of war. At Monmouth, how different is the technical in- 282 A BOOK OF BRIDGES

spiration ! Not a trace of good design saves the gate-tower from being no more than a weapon for ruthless men. A Peace Society could publish the Monnow Bridge as a fact to prove that slaughtering wars have been more vulgar even than the cruel battles of finance. It is the undefensive

parts of this bridge that I admire. The ribbed arches are

good (p. 93), and in them a slight tentative effort has been made to free the ring of voussoirs from the oscillation sent down through the spandrils when a great weight passes along the footway. "A slight tentative effort," I repeat, because the archstones have not been made independent from the spandrils.

6. To find arches of this kind we must return to the Pont Valentr^ at Cahors, which dates from the middle of the thirteenth century. In this noble bridge the voussoirs of all the arches look isolated from the spandrils, as they are rimmed and "extra-dossed." It was the Romans who invented the " extra-dossed" arch, and they proved that by separating archstones from the spandrils a bridge was relieved from much wear and tear. On the other hand, when archstones are unequal, when they are thicker in their haunches than at the crown, oscillation goes along the full length of a bridge, fatiguing the piers, and causing at times a noticeable shiver, as in the Llanrwst Bridge, designed by Inigo Jones.* Even Perronet forgot this effect of reper-

* The middle arch of 58 ft. span, 17 ft. rise, and 14 ft. in width across the soffit, has archstones which are only 18 ins. deep, and they vary in thickness from 5 to 16 ins. many of are : them 8 and 9 ins. Sometimes there are two headers to answer a ;

EUROPEAN, PERSIAN AND CHINESE 283 cussion when he built his bridge in the Place de la Concorde

at Paris ; and ever afterwards he clamped the headers with iron to the interior archstones, as if iron fastened into stone could never become a destructive agent. The architect of Valentr^ Bridge was wiser than Per- ronet, every arch in his work being an elastic bow that moves between two piers without conveying its oscillation beyond these supports. To our modern eyes, no doubt, there are too many arches across the River Lot at Cahors, but this defect seemed necessary in the Middle Ages, and for two reasons. It was regarded as a defensive precaution, because narrow arches were easier to protect from the roadway when

an enemy tried to assemble boats under a bridge ; and since in the frequent wars of those days a bridge had often to be cut as a final resource against defeat, it was essential that the destruction of one arch should not upset another by the withdrawal of a counterbalancing thrust from one side of a pier. Many piers of a large size were looked upon as particularly needful when the greater lateral thrust of round arches had to be considered in its relation to a bridge cut

course of common archstones ; and sometimes two courses of archstones answer one header. The piers are lo ft. thick, and the middle arch springs about 3 ft. above the river's bed. A steep road over the bridge diminishes the weight upon the side arches but Telford believed that if the spandrils had been hollowed the road could have been made with an easy gradient of i in 24. The workmanship is very light, and it appears to be stable, though a shivering bridge inspires no more confidence than a stammering man. In 1803, owing to a defect in the foundation of the western abutment, one of the side arches fell, yet the others remained uninjured while the broken one was being rebuilt. So the bridge in the proportion of all its parts must have been very well balanced, despite its quivering alertness and lightness. ;

284 A BOOK OF BRIDGES in a single place. Also, as we have seen (p. 264), bridges in the Middle Ages were built very slowly, and as war at any moment might stop the masons, piers were regarded as abutments and made very strong.

This much is known, but none can say why piers were built unreasonably large. Frequent inundations from obstructed rivers were as evidently harmful as weak piers that floods overthrew; and the genius that solved so many problems in church architecture ought to have shown in bridges a riper discretion. Often piers and arches were of the same width—a waste of labour and material, as well as of space in the waterway. Even the Romans, though their piers were less bulky, impeded the current of rivers with too much stone ; and to save their work from the floods which they provoked, they built relief bays for spate water above that part of their piers where adequate resistance had been obtained against the lateral thrust of heavy arches. In the Valentr6 at Cahors the architect scorned the aid of relief bays, and grew five vast piers from the river-bed not a courteous thing to do, seeing that the word river in " " French is a lady-word, La riviere —the very sound of it is a sweet compliment to the youthful waywardness of running water. Yet French bridge-masters have sinned against rivers as frequently as we English. If the Valentr6 had one pier less, how ample and noble the design would be ! Even now the design is so virile, so masculine, that we ought to speak of this bridge as we do of a great soldier. The feeble word " it" does not belong to the Pont Valentrd. 'J) '^

O f4 O K

2 H i w

EUROPEAN, PERSIAN AND CHINESE 285

"He" and "him" and "his" are the right pronouns. According to many writers he is the finest military bridge in the world, but comparisons are difficult and risky : they are affected too much by a writer's moods. One thing is certain—that the Valentr6 has no superior in his own line. His most celebrated rivals, two bridges at Toledo, in Spain,

have a feminine grace ; they are too courtly to be typical

soldiers. There is another Spanish bridge that ranks high

as a fortified work : it dates from the fourteenth century, and, in sixteen pointed arches, crosses the Duero at Zamora. Brangwyn prefers the Toledo bridges, the Alcantara and the Puente de San Martin, because they are lofty as well as spacious, while Zamora Bridge is long and low, like a good many Spanish bridges, both Roman and mediaeval.*

7. The Alcantara at Toledo. From every point of view this bridge makes a good picture, but I like her best when she is seen from a level only a little below the footway. Then I look down at the upward flight of her architecture, and watch how a luminous patterning of shadow enriches the suave yet austere masonry. Somehow I think of a courtly abbess whose half-smile is a discipline feared by

everybody. In no other way can I describe the technical inspiration that makes this bridge very uncommon. Look- ing down again, I see that the Spanish masons—or shall we call them Hispano-Moresque ?—were as thrifty as the

* Roman examples : the two bridges at Merida, and the bridge of Salamanca.

Mediaeval examples : Tudela, Tordesillas, Talavera, Zaragoza, Castro Gonzalo, and El Burgo, near Coruna, the scene of a good fight in Drake's expedition of 1589. 286 A BOOK OF BRIDGES

Frenchmen at Cahors ; across the breadth of the bigger arch, and below the springing, there are seven holes, from which the centring was scaffolded. Technically the arches are inferior to those of the Pont Valentr^, because their rings are not sufficiently rimmed and extra-dossed, so they

lie too close into the body of the spandrils. The pier is

designed very well, it has a distinction of its own and forms on each side of the roadway a narrowing shelter-place with four angles. Lower down, near the Moorish adaptation from a Roman triumphal arch, a long recess carried by five

brackets varies the line of each parapet, in which there is no pretension, no swagger, no balustraded bombast. On the town side the bridge is guarded by a Moorish gate- tower, while across the river is a gateway dating from the time of Charles the Fifth.

A Roman bridge crossed the Tagus at this great spot,

and was repaired in 687 by the Visigoths, but in 871 it disappeared, I know not how or why. Then a bridge was built by Halaf, son of Mahomet Alameri, Alcalde of Toledo, but Halaf obeyed a command from Almansor Aboaarmir Mahomet, son of Abihamir, Alquazil of Amir Almomenin

Hixem. I hope you like these names and titles ? They are given by George Edmund Street,* who quotes from Cean

Bermudez ; and so with confidence we may add Halaf Alameri to the few early bridge-masters who are known to us by name.

For 340 years no accident seems to have happened to * "Gothic Architecture in Spain," 1865, p. 211. EUROPEAN, PERSIAN AND CHINESE 287

and in most lands the fall of rain did much damage,

especially in Spain, where most of the bridges fell ; and among them was demolished a great part of that bridge of Toledo which Halaf, son of Mahomet Alameri, .... had made .... in the time of the Moors, 387 years before

this time ; and now the King D. Alonso, son of the noble King D. Ferrando, and of the Queen Dona Beatriz, who

reigned in Castile, has had it repaired and renovated ; and it was finished in the eighth year of his reign, in the year of the Incarnation 1258."

Even then some of Alameri's work remained, but I fear that it all vanished in 1380, when Archbishop Pedro Tenorio, a kinsman of Don Juan, and a great pontist, became patron of the Toledo bridges and gave to the Alcantara the appearance that we know, apart from the fortified gateways, which were either altered or built by Andres Manrique, a.d. 1484. 8. Brangwyn has sketched the other great bridge at Toledo, the Puente de San Martin, a better work of art 286 A BOOK OF BRIDGES

Frenchmen at Cahors ; across the breadth of the bigger arch, and below the springing, there are seven holes, from which the centring was scaffolded. Technically the arches are inferior to those of the Pont Valentr6, because their rings are not sufficiently rimmed and extra-dossed, so they

lie too close into the body of the spandrils. The pier is

A Roman bridge crossed the Tagus at this great spot,

Hixem. I hope you like these names and titles ? They are given by George Edmund Street,* who quotes from Cean Bermudez; and so with confidence we may add Halaf Alameri to the few early bridge-masters who are known to us by name.

For 340 years no accident seems to have happened to * "Gothic Architecture in Spain," 1865, p. 211. EUROPEAN, PERSIAN AND CHINESE 287

Alameri's work. Then in 121 1 a part of the bridge fell into the river; and six years later, during its restoration, Enrique I had a gate-tower set up by Matheo Paradiso, a military architect with too angelic a name. Forty-one years passed, and then the bridge was renewed once more, this time by the King D. Alonso, who put the following inscription on a piece of marble above the point of the arch : "In the year 1258 from the Incarnation of our Lord Jesus Christ was the great deluge of water, that began before the month of August, and lasted until Thursday the 26th of December; and in most lands the fall of rain did much damage, especially in Spain, where most of the bridges fell ; and among them was demolished a great part of that bridge of Toledo which Halaf, son of Mahomet Alameri, .... had made .... in the time of the Moors, 387 years before this time ; and now the King D. Alonso, son of the noble King D. Ferrando, and of the Queen Dona Beatriz, who

reigned in Castile, has had it repaired and renovated ; and

it was finished in the eighth year of his reign, in the year of the Incarnation 1258."

than the Alcantara. Here the style is far more masculine,

and there is no wide expanse of barren wall such as we find in the Alcantara below the bracketed recesses. The five arches vary much in size, no doubt, but yet they harmonise very well, and the most important one is heroic in scale,

being not less than 140 Spanish ft. wide and 95 ft. high.

As for the piers, each has a character of its own : they have but one thing in common—bulk enough not only to resist floods, but to be in keeping with a defile of rocks. There are two gateways, and one of them has Moorish ornament and a Moorish battlement. The Puente de San Martin seems to date from the year

1 2 12. In 1368 he met with an accident that destroyed the big arch. Shortly afterwards, about 1380, Archbishop Tenorio began the restoration, aided by a careless architect. One day, in fact, the architect perceived that his new arch would fall down as soon as the centring was removed. Panic-stricken, he went home and consulted his wife, who happened to be a forerunner of the Suffragettes. What

could be done to save her husband's reputation ? She could

set fire to the scaffolding; and when the arch fell Toledo was quite awed by the accident. All the usual things were said about the terrible destruction that flames could do in a

brilliant hour ; and then the architect was asked to renew what the fire had ruined. This time he did his work admirably, and his wife was too much elated by his complete success, for she gave discretion to the winds and told the tale of her incendiarism. If Pedro Tenorio had punished -r. K

Z-g

fa O p

o Pi

EUROPEAN, PERSIAN AND CHINESE 289 her by claiming payment for the new work from her husband,

Toledo would have been amused, perhaps ; but the good Archbishop had learnt too much in confessionals to expect very much from human nature. He seems to have done

THE RABOT AT GHENT : A FORTIFIED LOCK

nothing more than congratulate his architect on the wife's devotion.*

9. Defensive Bridges in Flemish Towns. They represent the manly, swaggering burghers who were not clever

* See George Edmund Street, whose valuable book on Spain ought to be studied side by side with those by Ford and Edgar Wigram. 290 A BOOK OF BRIDGES

enough to keep their liberties. The Pont des Trous at Tournai, for instance, guarded at each end by a huge round tower, has more to say to us about the turbulent old Flemish pride than have many chapters written by good

historians. It is a bridge enlivened by art, yet blinded by an excess of warlike caution. There are three good pointed

vaults, each with a double ring of moulded voussoirs ; and

there are two piers equally well designed ; but the parapet rises into a high rampart pierced with nine arrow slits, and the ungainly towers have such flat summits that they appear to be roofless.* At Courtrai, on the other hand, we find the Pont de Broel, whose tall round towers have conical roofs lighted in a playful way by dormer windows, and graced with long weather-vanes. The Pont de Broel

is a small bridge with three round arches, it looks very trivial between its formidable guardians. Both towers are encircled by machicolations, whose snarling teeth make an unpleasant girdle almost a third way down the walls. Between them and the roof are many small openings, defensive windows let us call them ; and beneath the machicolations some other windows keep watch, with a proper respect of scaling ladders. We pass on to Ghent, where fifty-eight bridges span the canals, and connect the thirteen islands into which the brave old city is divided. In 1488, after Frederick III, Emperor of Germany, with

* I am reading my proof sheets on the loth September, 1914, so it is necessary to add that the Pont des Trous at Tournai has renewed its military value, aiding the Belgians in their heroic efforts against that avalanche of inhumanity, the German Army. EUROPEAN, PERSIAN AND CHINESE 291 his son Maximilian, had raised the siege of Ghent, the victorious burghers began at once to build the famous Rabot Forts, which included a defended lock. Brangwyn represents the Rabot lock and its bold defensive towers. These have two points of interest. They do justice to the character of mediaeval Ghent, being bluff, stern, fanciful, ambitious, but short-sighted ; and they seem to be copied from the Holsten Gate at Liibeck, built by this Hanseatic and republican city as a protection against frequent attacks from Denmark. 10. Covered Defensive Bridges of Timber. In these the protection has been of three sorts : against the weather, against riots, and against primitive weapons. Thus the covered bridges of Sumatra, made with bamboo and boards, are sunshades in bridge-building; and this applies to the roofed timber bridges in Western China. Some of these are carried over important rivers on stone piers, their roofing is decorative, and even to-day they would be useful in a time of unrest, especially to women and children. As for the

Swiss variety of covered timber bridge, it seems to date from the period of lake-dwellings. But, whatever its lineage may have been, it is very ancient. Throughout the

Middle Ages it was valued in war as well as in winter, when its footway was always free from snow. Often there was but a narrow space for light and air between the overhanging roof and the balustrade of heavy planks. It is not surprising that Swiss timber bridges were to mediaeval archers and crossbowman what Hougomont was to 292 A BOOK OF BRIDGES

Napoleon's troops. On the other hand, it is surprising

that these primitive structures are still as popular among the Swiss as they ever were. The most remarkable specimens are at Lucerne. In Brangwyn's vivid pen-

TODENTANZBRUCKE AT LUCERNE IN SWITZERLAND

drawing we see the Todentanzbrucke, which is decorated with thirty pictures of the Dance of the Dead, by Meglinger.

As for the Kapellbrucke, also at Lucerne, it dates from 1303, and its length is 324 metres. It crosses the mouth of the river Reuss, that flows impetuously under it in a limpid EUROPEAN, PERSIAN AND CHINESE 293 torrent. The timbers that support the roof are ornamented with 254 scenes from the history of Switzerland.

1 1 . Pont Saint-Esprit, over the Rhdne, below the confluence of the Ard^che. This bridge, like the Pont

Valentr6, is a masculine structure, so we must speak not

PONT SAINT-ESPRIT

of "it" but of "him." Always there is a point of sex to be considered in architectural inspiration. Some bridges

are women, either high-born or low-born ; others are

common soldiers ; a few are great men of action, like the

Roman Alcantara in Caceres ; while many have no dis- tinctive sex, and we need pronouns with which to describe ;

294 A BOOK OF BRIDGES

their character. If we speak of a neutral bridge as " if" we " " say nothing at all ; but if we could refer to it as itshe or " ithe," then we could show in one word which sexual qualities predominate. In old English bridges it is the

neutral type that holds the field, very often in the "itshe" class. We have nothing to place side by side with the Pont Valentr^ and the Pont Saint-Esprit. Even Old London Bridge was a heroine, not a hero. A certain weakness germinated in the past of England, and influenced several phases of art and architecture. It is from this weakness, which seems to be racial, that modern England has grown by the score feeble artists limp with sentiment, and feebler faddists troubled with " nerves." Whenever I see one of our little old ballad bridges—an " itshe " or an "ithe"— I say to myself, "Here is modern England in embryo ; here is the beginning of a weak sentiment which in course of time will sap the vigour of our race."

So the Pont Saint-Esprit is to my mind something more than a noble achievement in manly bridge-building he marks for me also a startling difference between the undergrowth of the French character and the undergrowth of the English genius. We are beginning to realise in our own sports and games, as in boxing and in football, a truth which has long been known to students of French art, namely, that although the surface of the French character has boiled swiftly, like scum over jam, yet no other people have had in equal measure the self-belief that triumphs over frequent disaster, and the intrepid hope that gives ample EUROPEAN, PERSIAN AND CHINESE 295 pinions to the imagination. Study the churches of France in their historical sequence from their Romanesque period

to the last phases of Gothic ; contrast their varied charm with the almost incessant wars that devastated the country ;

and then lift your hat to the greatness attained by the French genius in times, not of crisis only, but often of catastrophe. We have reason to be very proud of our own churches, but they do not equal the French when they are studied side by side from large photographs. The un- happier country was the more adventurous builder, notwithstanding the virile influence brought to England by French Cistercian monks and by such bridgemasters as

Isembert. This fact is galling to our patriotism, but yet it helps us to appreciate those Englishmen of genius who have risen far above the many littlenesses which English public opinion has been overapt to approve both in art and in architecture. Again, there are three geographical reasons why the Pont

Saint-Esprit is very notable : he crosses the Rh6ne, one of

the most treacherous rivers in Europe ; he belongs to the Department of Card, where historical bridges have been

famed since the times of the Romans ; and he is in the district of Uz^s, where we find the Pont Saint-Nicolas, on the road to Ntmes, a lofty bridge of the thirteenth century, with a beautiful distinction, built by the Priory of Saint- Nicolas-Campagnac. Now these two bridges, so different in technical inspiration, yet so alike in thorough scholarship, mark a very 296 A BOOK OF BRIDGES

important time of transition in French architecture. The Pont Saint-Esprit was designed and built by the Fr^res pontifes, or Pontist Brothers, but already the good example set by these friars was followed with enthusiasm by a great many laymen, whose guilds were competing against the religious corporations. Sooner or later, inevitably, civil work of every sort would have to pass under the sway of

laic schools and masters ; but the people of France were superstitious in their fondness for the Pontist Brothers, whose ferry-boats had saved a great many lives, whose bridges were famous everywhere, whose hospitals lodged and fed pilgrims, and whose white dress was in harmony with their good work and their good conduct. So the public was very far from pleased when a bridge of importance was built without help from the Pontist Brothers. For this reason, and no other, the Pont Saint-Cloud was called un pont maudit, and its construction was attributed

to the Devil. Still, the Pontist Brothers had to go. During the thirteenth century their public value as bridge-builders grew weaker and weaker, until at last their competition against the trade guilds could be regarded no longer as a political offence.* It says much for them that their last undertaking, the Pont Saint-Esprit, was in most respects

* The religious order of Pontist Brothers came to France from Italy. It was

called the order of Saint-Jacques-du-Haut-Pas, and its chief resided at Lucca. From about the year 1 286 the French brothers had a great hospice in Paris, built on the site now occupied by the church of Saint-Jacques-du-Haut-Pas and the deaf and dumb asylum. In the fourteenth century the order confined its attention to the care of pilgrims, and at last—in 1459—it was suppressed by Pope Pius II. w

;

EUROPEAN, PERSIAN AND CHINESE 297

their best achievement : a fact which time itself has recognised by keeping this bridge in use to the present day. The Pont Saint-Esprit was commissioned by the Abbey of Cluny, and in 1265 the Pontist Brothers began to found the piers, after discussing their plans with Jean de Tessanges, Abbot of Cluny. Now, an earlier work of the Pontist Brothers, the Pont Saint-B6n6zet at Avignon, was eighty years old in 1265, and his behaviour in the Rh6ne must have been a subject of interest to the successors of Bdndzet. I conclude, then, that the Pont Saint-Esprit may be looked

upon as a technical criticism of the earlier bridge, and it approves in all respects the work of St. B6nezet. Both bridges have relief arches for spate water, and when they are examined in bird's-eye views, both have an elbow opposed to the current of the Rhdne, and each suggests the image of

a bridge of boats to which already I have drawn attention

(p. 262). This image is rather more pronounced in the case of the earlier bridge, for the length of B^n^zet's piers, in the

direction of the current, is enormous, being not less than thirty metres.

For the rest, the Pont Saint-Esprit seems to have an enchanted size, his most confident historians giving neither the same dimensions nor the same number of arches. Men with tape measures have grown tired of their job, seemingly and even in photographs some arches are omitted while others are blurred by distance. On my table is an excellent photograph : it takes in just a bit of the metal arch which, about fifty years ago, displaced two of the old arches and 298 A BOOK OF BRIDGES

made a passage for boats. From this point to the elbow

upstream, there are eleven arches ; beyond the elbow there

are six more, and the bridge is not complete. This is all the camera can do. According to Viollet-le-Duc, there are

twenty-two arches in a length of about 1000 metres ; the roadway is five metres wide. Larousse tells me, on the other hand, that the length is 738 metres, the width

5 metres 40, the number of arches twenty-six ; and another great work of reference, published also by Larousse, gives 919 metres for the length, and says that among the twenty- five arches there are nineteen ancient ones. We ought to admire the variegated self-confidence of historians.

But the main point is evident enough : the Pont Saint- Esprit is one of the longest stone bridges in the world. And the construction is truly marvellous. This was proved when a pier was pulled up to make room for the iron arch. The labour required was astounding, so excellent was the cemented masonry. But, of course, the bridge has passed through a good many changes to keep him in touch with the increase of traffic. In the seventeenth century he was still closed at both ends by strong gateways, while on the town side was a quite important defence of the fourteenth century, afterwards embodied in the citadel by which the river was guarded above-bridge. These defensive works have all gone, but their effect can be studied in "La Topographic de la Gaule," where an engraving gives a good idea of their appearance.

12. Ponte Nomentano in the Campagna, three miles EUROPEAN, PERSIAN AND CHINESE 299 from Rome. This, no doubt, is the most romantic of all the fortified bridges that Brangwyn has painted. Both bridge and castle are mediaeval, but they rise over the willow- frilled Anio, a river haunted by myths which to the ancients were sacred truths. It was in the Anio that Rhea Silvia passed from the brief hours of her mortality into the life of

a goddess ; and to this river Silvia confided her two children, Romulus and Remus, the twin Moses of Roman story, who were carried in their cradle to the Tiber, where other waters

bore them on and on till at last they came to land under the

fig tree at the foot of the Palatine hill. What a delightful legend to be whispered by the current of the prattling Anio

below the uncouth stones of the Nomentano ! What other

war-bridge has been united to such a gracious myth ? And history as well as legend has been busy on the banks of the Anio. Into this river the ashes of Marius were thrown by the adherents of Sulla; and beyond the

bridge, on the right bank, west of the Via Nomentana, is a very famous hillside, the Mons Sacer, to which the plebeians retreated, as to a fortified place, when they asserted their right to tame the patricians. Their first great strike, or secession, occupied four months in the year 549 B.C., when four thousand of them encamped on the friendly hill, leaving the crops unharvested, and the city without a garrison. Mount Sacer became sacred to the People of Rome, and to the historic sense it is the Hill of Liberty, sanctified by the first brave ideals of a democratic justice. Yet in recent times vulgarians have taken hold of Mount Sacer, and 300 A BOOK OF BRIDGES have carted it away by the ton to be used as building material.

As for the Ponte Nomentano, he is nothing more than a burly soldier, a common man-at-arms. The mediaeval engineer was uninspired by an enchanted site, and gave the whole of his attention to the pronged battlements. He had no feeling for proportion, and no liking for a stern eloquence of line such as we find in the noble castle of Chenonceaux, a masterpiece of the French Renaissance, whose long wing is carried by a bridge of five round arches, and whose turreted portion is pierced by a single arcade. 13. The bridges of Laroque, near Cahors, on the river Lot. In this rapid sketch Brangwyn represents a riverside Gibraltar upon which an ancient village stands, partly on bridges. Its value in "the good old times" as a stronghold fortified by Nature is patent, and the watch-towers have an unsleeping alertness that looks out upon the world through one eye or window. I should like to know who built the first bridge at Laroque. There is a Romanesque form in the arch drawn by Brangwyn, and the Romans were active in the neighbourhood. Over the Lot at Divona, now called Cahors, they built a bridge, which perished some years ago in a local storm of party feeling. To imagine Rome with a Gibraltar on the Lot is a great pleasure.

Before we pass on from the defensive bridges, I should like to give you a picture of the famous old bridge at Saintes, in France, that lasted to the year 1843, when it

—

EUROPEAN, PERSIAN AND CHINESE 301 was destroyed. I know not why I use the silly word " it," for the bridge of Saintes was an exceedingly martial structure that united all the main phases of military art—the primitive, the Roman, and the mediaeval. Let me give an abridged description from Viollet-le-Duc's " Dictionnaire " raisonnde d'Architecture :

"The first gate appeared on the right shore of the

Charente, on the side of the Faubourg des Dames ; next came the Roman arch,* the upper part of which was crenellated during the Middle Ages; next on the side of the town stood a tower of oval plan, through which the road

lay ; the town gates with flanking towers closed the end of the bridge. From the first gate to the Roman arch the bridge was of wood, as was also the case between the great tower and the town gates, so that by the removal of this

part of the roadway all communication could be cut off between the town and the tower, as well as between the

bridge and the Faubourg ; moreover, the parapets were crenellated, so that the garrison of the town at any moment could stop all navigation."

* The triumphal arch of Germanicus, dating from the time of Tiberius. It is

extant at Saintes ; but -when it was reconstructed after its removal from the bridge it suffered much from a mixture of new stones with the old. It is an arch with two

passages 38 ft. high. V

BRIEF introduction to the history of bridges has so many difficulties that I creep through my in long day. Ak. work, a few hundred words a To try to plant an oak tree in a thimble would be more difficult, I suppose, but gleaning here and there over vast fields brings trouble enough to any writer. I go through scores of photographs, and turn over great piles of notes, and seek for a topic that is not too technical for the general reader, but that touches a really important phase in the evolution of bridge-building. There is a species of bridge to which the arches at Laroque belong ; it may be called either freakish or very exceptional. Let me give a few examples.

There is one at Crowland, a curious three-branched structure which for many a year stood at the confluence of the Catwater drain and two streamlets, the Welland and the Nyne. To-day no water flows under this bridge, and common little modern houses do not make pretty pictures when they are framed by the arches. There are three pointed arches, with their abutments at the angles of an

equilateral triangle ; they meet in the middle, and form three roadways and three watercourses. They have three stone ribs apiece, and the nine ribs meet in the centre. 302 EUROPEAN, PERSIAN AND CHINESE 303

I note, too, that these arches were built not by a bridgeman, but by a mason skilled in church work, for their rings are moulded elaborately as in Gothic windows and doorways.

As for the style of architecture, it is not older than the beginning of the fourteenth century ; but a much earlier bridge at Crowland, probably of wood, was famed for its triangular shape, and mentioned in a charter of the year 943, when Edmund was King. At the south-west entrance of Crowland Bridge, beyond the five steps, there is a rough-hewn statue that represents a crowned and bearded figure seated up high against the parapet walls, in an attitude of sorrow, with arms folded (and perhaps they may be bound together) over a long robe. Time has frayed and scarred this uncouth sculpture, but not without leaving some mellow lines and planes. The archaeology of guesswork has called this effigy by various names, such as Ethelbald, and Saint Guthlac, and Henry

II, but I prefer to look upon it as a simple Pietk chiselled by a mason who had been trained to do enniched figures for church decoration—work without detail, to make at a distance a broad effect. This conjecture is in accord with the ecclesiastical moulding of the archstones, and with the mediaeval custom that united bridges to Christianity by means of sacred emblems. Crowland Abbey ruled over the district, so one of the Abbots may have built the bridge ; and perhaps the pointed arches, three in number, with their triple ribs, and their three pathways, and the three streams of water, may have been intended as symbols of the Trinity. 304 A BOOK OF BRIDGES

If so, —and there is nothing in this view to clash with the spirit of the Mediaeval Church,—then a Pieta turned toward the west would be the most beautiful symbol of that Light which went down with the sun, and then rose again through the dark into the dusk, and through the dusk into a dawn where faith for ever dwells. On the other hand,

if the crowned figure represents a mere earthly king, I know not why Ethelbald should be chosen, for his reign of two years was not a creative time and he died in 860, just eighty-three years before Crowland's triangular bridge was alluded to in the charter of the year 943. Alfred, Edward the Elder, and Athelstan—these kings in succession were nearer to the charter, and their longer reigns were more notable than the short hours of Ethelbald. Alfred we should prefer, of course, but he has been passed over by the busy minds that have weaved around Crowland Bridge so many cobwebs of the study and so much haze of idle conjecture. My own views are conjectures also, but they are taken partly from the bridge itself and partly from the care and affection that the Church during the Middle Ages bestowed on bridge-building.

And now a technical matter ought to be considered in its bearing on the arches of Crowland Bridge. At a time when bridges were protected by the Church, their arches were affected by changes of style in ecclesiastical windows and doorways ; but, of course, whatever shape was given to them, they were treated differently from doorways and windows, for these had to bear only a downward ;

EUROPEAN, PERSIAN AND CHINESE 305

thrust, while bridges had to withstand five trials : their own " spring," the vibration caused by wheeled traffic, the lateral pressure of flowing water, the disturbance of gravity by immersion, and blows from drifting ice and timber. With these problems to be solved, bridgemen set no store by moulded archstones, a kickshaw of style. Sometimes they built the ring of an arch with two or three sets of voussoirs,* but their aim was practical, not ornamental ; they wished to give greater resistance to their work, and not merely to spend time and money on a decorative effect. So when we find in the arches of Crowland Bridge such moulded handicraft as was used in church decoration, we may surmise that the architect and his masons were not bridge-builders, and that they worked only for the light foot-traffic of a village. It is worth noting that in the year 1752 a French architect named Beffara took a hint from Crowland Bridge, and then achieved fame with a daring structure built near Ardres, in the Pas-de-Calais. There are four branches to

* There are many old arches with two or three sets of voussoirs. Over the Loire, at Brives-Charensac, there is a Roman specimen with two rings, now a ruined bridge. Some English examples : the Jolly Miller's Bridge over the Dee, Chester

Bradford-on-Avon, Wilts, the round arches ; Bideford, Devon, twenty arches, built in the fourteenth century with help from indulgences sanctioned by Grandison, Bishop of Exeter; Lostwithiel, Llangollen, Fountains Abbey, Bishop's Bridge at Norwich, West Rasen, Lincolnshire; Eamont Bridge, Penrith, a triple ring of archstones; Higherford Bridge, near Colne, reputed to be Roman, a wrong attribution, I believe

St. Neots, the most important arch is very interesting ; and the Abbot's Bridge at Bury St. Edmunds. This one is Early English, and its three remarkable arches give us a parallel to the ecclesiastical workmanship in the arches at Crowland. The piers also and the buttresses are unsecular. — ;

3o6 A BOOK OF BRIDGES this bridge, and they carry roads over two canals that intersect at right angles. One canal goes from Saint- Ouen to Calais and the other from Ardres to Gravelines. Beffara's work is placed by Larousse among the fifty-four most notable bridges in the world, and this honour it tried seems to merit ; but Frenchmen in their vanity have to make it into a pretentious bridge by giving to it a brag- gart name Le Sans-Pareil. Gracious ! It is fit for a caf6 or for a battleship, in whose nomenclature bravado " and bombast rule as customs. Poor Beffara ! Le Sans- Pareil," like "Titanic" or like "Dreadnought," defies the powers of Nature, inviting them to do their worst and what good omen can there be in such bantam

cockiness ? For a long time the old bridge at Bile, over the Rhine,

remarkable for its length and for its beautiful site, was not only freakish but exceedingly insolent. At one end, on the side of greater Bale, was a tower decorated with a grotesque head called Laellenkoenig, which, in answer to the working of a clock, put out its tongue and rolled insulting eyes at the opposite bank. Eight or ten times an hour this abusive

pantomime was repeated, and it never failed to anger little Bale, which had the pugnacious vanity of a small organism. I do not know how many duels were fought, but at last a touch of Rabelaisian humour suggested a mechanical re- venge, far more regular in its action than were fights and punctured bodies. A tall post was set up by the inhabitants

of Bale junior, and on the top of it stood a hateful statue EUROPEAN, PERSIAN AND CHINESE 307 that affected to turn its back on the enemy with a shameless movement.

It is risky at the present time to say that a bridge has certain old characters : change is so rapid that no pontist can keep in touch with its vagaries ; but I believe the old bridge at Bale is alive, and that it keeps in use the Gothic tower, a triangular defence of red sandstone erected on the middle pier, and devoted now to a thermometer, a baro- meter, and a table of weights and measures. Lsellenkoenig has gone, of course, and Bile junior has grown much bigger and less techy. The Bridge of Sighs, at Venice, must be included among the exceptional bridges, being equally celebrated in history and in art. Who can say how many times she has been etched and painted and engraved ? She is not very important as a work of architecture, yet artists are drawn towards her invariably, and seldom do they fail to make her impressive. Brangwyn loves the Bridge of Sighs, and does her much more than justice in one of his finest etchings. There is something trivial in her Renaissance ornament, and her proportions are not great, being only two metres wide and six high ; on the other hand, her abutments are famous buildings, the ducal palace and the State prison. It is from the second storey of the palace that we enter the gloom of her covered passage, concerning which a Frenchman writes " as follows : On pourrait presque le comparer, en agrandis- sant les proportions, di nos fourgons d'arm^e.'' It is said that only a prisoner here and there went over 3o8 A BOOK OF BRIDGES this bridge more than once—in his compulsory walk from a dungeon in the prison to the Council of the Ten. Those who awaited their trial in the dungeons were looked upon before the Ten was as already condemned ; their appearance

a formality, at least in public opinion ; and for this reason the dark corridor across the canal was called the Bridge of Sighs. Among the bridges of the fourteenth century there are two that history has set down as very exceptional. One of them is a covered bridge over the Ticino at Pavia, erected under the care of Gian Galeazzo Visconti. Professor Fleeming Jenkin says of it: "This bridge, which still

exists, has seven pointed brick arches, each 70 ft. in span

and 64 ft. in height ; the depth of the arch ring at the

crown is 5 ft. 6 in. The tympanum is pierced ; the bricks used in the arches are formed to suit their position, and are hollow in the middle to diminish the weight. The roof

of the roadway is carried by a hundred rough granite columns."

This neat description is accurate, but in it the bridge is

not visualised. Would that we had a Brangwyn sketch 1 I have by my side an engraving of the bridge, and the effect of the design is that of an open-work frieze. Each

gracefully pointed arch is a repetition of the other six ; the

piers also are uniform and graceful, being all 16 ft. 3 in.

wide ; and all the spandrils are pierced in the same tri-

angular fashion. The point of each triangle is turned downwards, its sides are the inner surfaces of two arch EUROPEAN, PERSIAN AND CHINESE 309 rings, and its base, turned upwards, and gracefully arched with seventeen long bricks, helps to support the parapet. On this parapet at equal intervals rise the hundred granite columns by which the covered roadway is carried. So the design is a clever feat not merely of repetitive decoration, but of repeating solids and voids that oppose each other in a harmony of contrasts ; for the empty spandrils in their form oppose the leaf-shaped openings made by the arches, and all the curved solids of the bridge are foiled in a rugged manner by the upright columns, as well as by the long horizontal lines of the covered roadway. In the contrast between cold granite and warm brick there is colour

also, and it suits the pulsating light and heat of Italy. As for the second bridge of the fourteenth century, which architects regard as very uncommon, it exists in

drawings only, for it was destroyed by Carmagnola. Its

founder was a duke of Milan, Bernabb Visconti, and it crossed the Adda at Trezzo. According to Hann and

Hosking, it had " a single arch of granite, very well constructed of stones in two courses, the innermost s^ft. thick in the direction of the radius, the outermost 9 in., the span

at low water 251 ft. ; the river rises sometimes 13 ft." The

radius of the arch was 133 ft. A span of 251 ft. in a stone

bridge was a noble achievement. It is the largest that I remember. The Grosvenor Bridge at Chester has a span

of 200 ft., just thirty yards wider than the central arch of Trajan's Bridge over the Tagus. New London Bridge in

her finest arch attains a span of 152 ft., beating Waterloo 3IO A BOOK OF BRIDGES

Bridge by nearly eleven yards. Two French bridges of the eighteenth century—the Pont de Lavaur and the Pont let me refer you de Gignac—have spans of i6oft. ; and also to the Pont de Neuilly-sur-Seine (p. 338). Many uncommon bridges have been attributed to the them. Chinese, and I know not what to say about some of Let me quote from Marco Polo, giving also the excellent notes written by his editor Colonel Yule. In the twenty- seventh chapter of his travels Marco Polo speaks " of the river named Pulisangan, and of the bridge over it." This river, whose name is written variously, is believed to be the Hoen-ho of the Jesuits' map, which, uniting with another stream from the north-west, forms the Pe-ho or White River. When Marco Polo comes to the Pulisangan* he finds "a very handsome bridge of stone, perhaps un- equalled by another in the world." " Its length is three that ten men hundred paces, and its width eight paces ; so can ride abreast without inconvenience.! It has twenty- four arches, supported by twenty-five piers erected in the

water, all of serpentine stone, and built with great skill.

* It may be remarked that in the Persian language the words pul-y-sangi signify the "stone bridge,'' and it is not improbable that the western people in the service of the Emperor may have given this appellation to the place where a bridge of great celebrity was thrown over the river, which is here applied to the river itself. It will be found to occur in Elphinstone's "Account of Caubul," p. 429, and in Ouseley's " Ibn Haukul," p. 277.—Colonel Yule. t Ten horsemen could not draw up abreast in a space less than thirty feet, and might probably require forty when in motion. The paces here spoken of must there-

fore be geometric ; and upon this calculation the bridge would be five hundred yards in length.—Colonel Yule. EUROPEAN, PERSIAN AND CHINESE 311

On each side, and from one extremity to the other, there is a handsome parapet, formed of marble slabs and pillars arranged in a masterly style. At the commencement of the

ascent the bridge is something wider than at the summit, but from the part where the ascent terminates, the sides run in straight lines and parallel to each other.* Upon the upper level there is a massive and lofty column, resting upon a tortoise of marble, and having near its base a large figure of a lion, with a lion also on the top.t Towards the slope of the bridge there is another handsome column

or pillar, with its lion, at the distance of a pace and a half

from the former ; and all the spaces between one pillar and another, throughout the whole length of the bridge, are filled up with slabs of marble, curiously sculptured, and mortised into the next adjoining pillars, which are, in like manner, a pace and a half asunder, and equally surmounted

with lions, t forming altogether a beautiful spectacle. These

* By P. Magalhanes, who particularly notices this description, our author is understood to speak here of the perfect level of the surface, and not of the straight- " " ness of the sides : Aux deux extremit^s," he translates, il est plus large qu'au haut

de la montee : mais quand on a achevd de monter, on le trouve plat et de niveau comme s'il avoit este tire k la linge" ("Nouv. Relat.," p. 14). But the words, " uguale per longo come se fosse tirato per linea," seem rather to refer to the general

parallelism of the sides, although at the ends they diverged, as is the case with almost all bridges.—Colonel Yule. t The ideas of the symbolic lion and of the tortoise are borrowed by the Chinese from the singa and the KHrma of Hindu mythology.

X It is difiScult to understand from the words of the text . . . the position of these larger columns with regard to other parts of the bridge; but it seems to be meant, that in the line of the parapet or balustrade, which was formed of alternate slabs of marble and pillars, there was in the middle (or over the centre arch or pier) a column of a size much larger than the rest, having a tortoise for its base or 312 A BOOK OF BRIDGES

parapets serve to prevent accidents, that might otherwise happen to passengers. What has been said applies to the * descent as well as to the ascent of the bridge."

I do not understand why this description is considered very difficult to understand. It depicts a gabled bridge with a flat top, not an uncommon form of bridge in China,

I believe. The footway ascends to the beginning of the middle arch, where it becomes flat and level ; it continues so for the full width of the arch, and then it descends toward the abutment across the river. With this picture in mind it is easy to decorate the bridge over the Pulisangan, or Hoen-ho, with the accessories described by Marco Polo. The parapets have coping stones of sculptured marble, and pillars are carefully set along the parapets at an equal distance from each other. These pillars are of two sorts. Those above the flat part of the roadway, where the parapets also are horizontal, are tall and massive. On each side, at the brow of the ascent, there is a tall pillar upon the summit of which is a pedestal; and it may be presumed, although not so expressed, that there was a similar column in the balustrade on the opposite side. . . . One of the Jesuit missionaries who mentions a bridge which he had crossed in this part of the province, says, "Les gardefous en sont de marbre; on conte de chaque cote cent quarante-huit poteaux avec des lionceaux au-dessus . . . et aux deux bouts du pont quatre ^lephans accroupis."—Colonel Yule. * Notwithstanding any partial difficulties in the description, or seeming objec- tions to the credibility of the account given of this magnificent bridge, there is unquestionable authority for the existence of one similar to it in all the essential circumstances, and as nearly about the situation mentioned as can be ascertained from the conciseness of the itinerary, so lately as the seventeenth century. It may well, however, be supposed that in the lapse of four hundred years material changes must have taken place, in consequence of accidents, repairs, and perhaps removals. —Colonel Yule. EUROPEAN. PERSIAN AND CHINESE 313

parapet, on this level stone lion ; and in the middle of each part of the road, there is a taller and heavier column, whose pedestal is a marble tortoise, and whose summit carries a symbolic lion. Another lion is placed near the tortoise, perhaps on a ledge of stone corbelled out from the parapet. As for the parapets that slope up from the abutments to the point where they become level, or horizontal, they, too, have their emblematic lions carried by pillars, and these ornaments, in accordance with the logic of design, are much smaller than those on the summit of the steep bridge. For the rest, Marco Polo speaks of twenty-four arches and of twenty-five piers ; and if we give to the arches an average span of fifty-two feet, and to the piers an average width of thirteen feet, we get a bridge 1573 ft. long, or seventy-three feet longer than the five hundred yards suggested by Colonel Yule. Viewed in this way, apart from the vague glamour of enthusiastic words, there is nothing extravagant in Marco Polo's description. Many writers have been astonished by another Chinese bridge, called the Bridge of Cho-gan, in the province of

Shen-si. Its great arch is said to have had an unrivalled

span. I am told that it was built with huge blocks of stone, cut into voussoirs, the joints of which converged towards a common centre, as in our own bridges. This may be true,

though in photographs of Chinese bridges which I have

seen the voussoirs do not resemble ours ; not only are they much longer, they are much narrower also, and recall to my memory a good description written by Barrow, whose 314 A BOOK OF BRIDGES impressions of China are invaluable to students. Barrow speaks of archstones from five to ten feet long, and says that each stone " is cut so as to form a segment of the arch."

" There is no keystone " when an arch is built in this manner. Again, " ribs of wood fitted to the convexity of the arch are bolted through the stones by iron bars, fixed in the solid " part of the bridge ; sometimes no wood is employed, and then " the curved stones are mortised into long transverse blocks of stone." It would be ridiculous to speak of this technical method as one that employs voussoirs, since the arch ring is built with a few segmental stones and without a keystone ; and possibly the Bridge of Cho-gan was constructed in this fashion. A drawing of it is given in Kircher's " La Chine Illustr^e "—or, rather, in Dalqui^'s translation of Kircher's book, published in 1670 at Amster- dam. It is not a geometrical drawing, and the dimensions are given in Chinese measures, which do not help us to love Kircher and Dalqui^. M. Degrand is baffled by these measures * ; but he admits that the Bridge of Cho-gan must have been a grandiose structure dating from a very remote time. Gauthey speaks with admiration of the " Pont de Fo- Cheu sur le Min "—a bridge not less than 7935 metres long by 19 metres 50 wide, with a hundred arches, all semicircular, and thirty-nine metres in their average span. The piers were nearly as broad, and their height was thirty-nine metres. Here is a bridge that Dean Swift ought to have

* Fonts en Magonnerie." :

EUROPEAN, PERSIAN AND CHINESE 315 put into his pictures of Brobdingnag. Gauthey seems to have faith in it, while M. Degrand has doubts. He says

" Even if we admit that there is no flagrant exaggeration in the documents from which the account of this bridge is taken, the workmanship in its general character, as shown in the drawing given by Gauthey, has a near resemblance to that in Roman bridges, and ought not to be assigned to a period earlier than theirs." Gauthey describes the decorative treatment. Under the parapet of white marble

ran a line of consoles ; the piers were surmounted by figures of lions in black marble, cut from blocks seven metres long ; and above each twentieth arch the footway was guarded by a gateway, un arc de triomphe.

For the rest, as I wanted to learn something more about this bridge of a hundred vast arches over the Min at Fo-Cheu, I wrote to the Rev. O. M. Jackson, whose kind help I have already acknowledged (p. 248). There is a river Min in Sichuan, but no news of such a bridge has reached Mr. Jackson, though he has worked in Western China for more than twenty years, and has travelled on foot over a very wide area in the province of Sichuan. Again, Mr. Jackson does not recognise the spelling " Fo- Cheu," but refers me to the city of Fu Chow in the coast province of Fukien. One day, perhaps, research will bring me in touch with the colossal masterpiece described by Gauthey, though at present I am baffled by the variety of geographical names that travellers have given to the bridges of China. Still, the Chinese have been great 3i6 A BOOK OF BRIDGES bridge-builders, and some of their stone arches have been very high and very wide. Perhaps the one described by Kircher may have been as wide as Trezzo Bridge, over the

Adda, with its wonderful span of 251 feet. My favourite bridge in the class of exceptional merit is the Ponte della Trinita over the Arno at Florence, designed in 1566 by the architect of the Pitti Palace, Bartolomeo Ammanati, a devoted admirer of Michelangelo. Both in science and in art the Ponte della Trinitk is complete as an original success. Its vaulting— I ought to say his vaulting, for in this bridge the male qualities of genius are much stronger than the female—his vaulting, then, if not the most scientific in the world, is not excelled by any other work either ancient or modern. There are three arches, and their curves are cycloids ; the rise from the springing level is only a trifle more than one-sixth of the span. How Ammanati managed to get his effect of perfect balance and symmetry is a question very hard to answer, for there is a considerable difference between the width of his arches, the central one being 96 ft. in span, and the others 86 ft. and

88 ft. This fact has been established by measured drawings, but do you notice it out of doors, in the magic of this beautiful bridge? The piers are simple and excellent. Their width, twenty-six feet, is not too much for the spates of a freakish river, nor too heavy for the bridge as a linear

composition ; on the upstream side they have stern cutwaters, good foils in a piece of architecture that blends an alert grace with a supple vigour. Another point worth EUROPEAN, PERSIAN AND CHINESE 317 noting is the gradient of a roadway that starts out from low abutments. Ammanati was bent upon being a friend to the traffic of Florence, and with the help of his cycloid arches he kept the road on a mild curve. To-day this good

point attracts little attention, as most of us forget that

steep bridges were in vogue till late in the eighteenth century. A Victorian pontist, William Hosking, endeavoured to prove that Ammanati made one mistake in the Ponte della Trinity. It seemed to Hosking that the piers were too bulky, so he cut them down in a sketch and spoilt the whole bridge by altering the proportions. Architects told

him so, but Hosking crowed over his little sketch and

published it with pride, as you will find by turning to his "Architectural Treatise on Bridge Building"—a valuable work from other standpoints. —

great work of Ammanati sets thought in THEmovement on bridge decoration, and I wish to offer some hints on this subject, not for the purpose of finding rules, but in order that a public debate may be invited. Rules would be very useful if they could be formulated, but in bridge decoration national sentiment and personal feeling have been exceedingly active ; no writer, then, can do more than offer suggestions from his own point of view. Less than twenty years ago a debate on this subject would not have been easy, for good books on the technical history of bridges were uncommon, and photographs of fine examples were far more difficult to get than they are now.

English books on bridges are still formidably dull ; to read them is perhaps as troublesome as hill climbing on a foggy " " day ; but the fear of being ploughed in a stiff examina- tion helps young men to be intrepid. In France, on the other hand, the public is served very well by literary pontists. M. Charles B6ranger, for instance, from his

Librairie Polytechnique in Paris, is publishing a series of thorough books on bridges, as useful to us as they are to French students. Already eight volumes have been issued.

They include : 318 EUROPEAN, PERSIAN AND CHINESE 319

1. "Ponts en Ma^onnerie." Par E. Degrand, Inspecteur- G^n^ral des Ponts et Chauss^es, et Jean R^sal, Ing^nieur

des Ponts et Chaussdes. Two volumes, illustrated ; 40 francs.

2. "Ponts M6talliques." Par M. Pascal, Ing6nieur. illustrated. One volume ; 15 francs ;

3. "Croquis de Ponts M^talliques." Par Jules Gaudard, Ing6nieur Civil et Professeur Honoraire de I'Universitfe de

Lausanne. Profusely illustrated ; 20 francs.

4. "Cours de Ponts M^talliques." Par Jean R6sal. illustrations francs. Vol. I, 375 ; 20

5. " Manuel Th^orique et Pratique du Constructeur en Ciment Arrn^." Par MM. N. de T6desco et V. Forestier.

One volume, 242 illustrations ; 20 francs.

6. " Etudes sur les Ponts en Pierre remarquables par leur Decoration." Par F. De Dartein, Inspecteur-G^n^ral

des Ponts et Chauss^es en Retraite, etc. Vol. I, " Ponts

Fran9ais ant^rieurs au Dix-Huiti^me Sifecle " ; not yet published. Vol. II, Ponts Fran^ais du Dix-Huiti^me Siecle—Centre"; published. Vol. Ill, "Ponts Fran^ais du Dix-Huiti6me Siecle Languedoc " published. Vol. — ; IV, Bourgogne; published. Vol. V, "Ponts Etrangers antdrieurs " au XIX sibde—Italiens, Espagnols et Anglais ; not yet published. Price, 25 francs the volume.

For this work M. De Dartein has made exact measured drawings from sixty-eight bridges, and each example has a great historic interest. The author has taken a line of his ;

320 A BOOK OF BRIDGES

own, dwelling on the ornament of bridges, their decoration several of his volumes are long overdue, but in his earnest study of the eighteenth century we see what he admires in

French design. M. De Dartein is thoughtful and thorough,

but I wish some photographs had been added to the illustrations, because measured drawings give only the dry bones of architecture.

How to decorate a bridge is a. question beset with so

many problems, some practical, and others aesthetic, that it ought to be debated at an international congress of engineers and architects and artists. There are persons who think that M. De Dartein will say the last word on his important

theme ; but it is enough for me to believe that his material and his personal taste will be invaluable, presenting facts and provoking discussion. He lingers too often over details of trivial ornament, which increase the cost of production without doing any good at all to the architecture. In other words, M. De Dartein speaks too often as an engineer. The qualities of a great bridge should make their appeal in stern lines, in ample proportions, in a scale that befits not

the site alone but the site and its history ; for all fine architecture dwells with the fugitive generations as a lasting citizen ; it is an epitome of racial character alembicated by genius. Bridges cannot be fine when they are dwarfed by their environments, or when they are too big to be in harmony with the externals of their setting. This, no doubt, is a staring truism, yet it is unseen by most modern engineers, whose metal monsters are often as wrongly < u ^ < it

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EUROPEAN, PERSIAN AND CHINESE 321 placed in a gentle landscape as a giant from Brobdingnag would be at Lilliput. On the other hand, can you explain why the Roman bridge at Alcantara is tremendous art ? Is it not because he is in scale with the rocky gorge of the

Tagus ? This virile bridge completes a grand site, and finds in the site his own completion.

Still, it cannot be said that Roman bridges were always free from redundant ornament. There were times when

pomp exerted a bad influence ; and later ages borrowed oddments of Roman decoration that weakened in many countries the aspect of bridges. It is from such Roman work as the Pont du Gard, where no detail was called for, and where the architect's aim was to be unpretentious, that we learn never to worry a bridge with embellishments. To construct ornament is very often an easy accomplishment of

bad taste, while to ornament construction is a very difficult

problem of self-restraint in art, because judgment tells us that a great design carried out in simple and thorough

masonry is in itself ornamental, if not complete. Applied

decoration is almost certain to harm it, just as a human face is disfigured by sticking-plaster. For example, turn to Frank Brangwyn's drawing of the Pont Neuf at Paris, and note under the parapet the well-

spaced brackets. Each bracket is decorated with a mask. Why? Simpler and shorter brackets would have been more in keeping with the architecture, as these long ones overlap the keystones—a serious blunder. Partly to hide a ring of voussoirs is to blur the whole structural beauty of 322 A BOOK OF BRIDGES an arch. It is like covering the eyes with blue spectacles. And there are other mistakes of scale in the Pont Neuf. No fewer than six piers are crowded into the Seine, as if inundations were amusements to be liked very much. But the spirit of Renaissance art was overapt to be finikin. In a fine bridge at Chatsworth, for instance, a charming effect is troubled by a too expensive parapet ; and statues are lodged on pedestals above the cutwaters. Why ? Is the cutwater of a bridge a convenient spot for the display of sculpture ? As many persons fear in talk a sudden silence made by thought, so many architects in their revisions fear the plain spaces left in their designs by a creative inspiration. Then in a hurry they add some " ornament " such as we find at Chatsworth, or in Gauthey's Pont de Navilly on the Doubs. In this bridge narrow spandrils are choked with an overturned vase surrounded by an ornament of bulrushes, and over each cutwater there is a huge stone shaped like an egg and garlanded. I decline to speak in technical terms because the folly of using superfluous "ornament" is hidden by words that look erudite. Was it an admiration for Moses that caused Gauthey to put bulrushes on a bridge? And did he suppose that they suggested water and adventure ? As for those huge eggs of stone, if they came from some bird five or six times as big as an ostrich, I should like to see them in a museum of natural history, but without their ornamental wreaths. In brief, are you attracted by any phase of modern bridge-building that copies the decorations of civic archi- EUROPEAN, PERSIAN AND CHINESE 323 tecture, displaying columns, pilasters, niches, balustrades, battlements, towers, turrets, pinnacles, or any other finery that serves no organic purpose in the life of a contemporary bridge ? Myself, I hate such a strumpet of a bridge as the Hoogesluis at Amsterdam, with her ornate spandrils, and her embossed masonry, and her balustraded parapet surmounted by a row of obelisks around which lamps are bracketed. Also I hate such a suspension bridge as the one at Conway Castle, where the metal rods that support the roadway pass through a brace of turrets on each of the embattled gateways. The effect is not only comic but ludicrous. No engineer with any sense would have put a metal viaduct within a few yards of Conway Castle. Or, if a metal suspension had been forced upon him by his employers, he would have made in a modern style a very simple and stern design. Instead, we have two vulgar gateways rudely copied from Conway Castle, and then lacerated by five metal rods that cut through each of the four turrets. I am reminded of an absurd railway bridge at Cologne, whose parapets are—or were—flanked by small turrets, and whose gateway has—or had—two high towers formidably armed with make-believe battlements and machi-

colations. Such futile pretension is a public insult ; it implies that laymen have no common sense at all in their attitude to " feats of engineering."

But it is not the modern bridge alone that provokes criticism in this matter of decorative art. Some ancient and famous bridges are hard nuts to crack as soon as we 324 A BOOK OF BRIDGES pass from their structural fitness to their ornamentation.

As an example I may choose the Ponte Sant' Angelo at Rome, which has been copied feebly by the Schloss Briicke at Berlin. Originally the Sant' Angelo was the Pons

^lius, built by Hadrian (a.d. 13) face to face with his mausoleum, to-day the castle of Saint Angelo. In the seventeenth century new parapets were added to the bridge, and ten colossal statues by Bernini were put up on pedestals along the parapets. Around these statues many a controversy has raged, and I am not surprised. In my photographs there is a small lamp-standard between each pair of huge figures ; even the lights of Rome have to twinkle below the decorations. The bridge looks burdened

rather than adorned : it is neither wide enough nor high enough to be used as a gallery for sculpture modelled on a large scale. That a great effort was made by an artist of power is evident, but the artist worked for his own ambition, and not for the Ponte Sant' Angelo. He had no conception of the fact that the bridge and its environment were so good that they could not be improved by huge " embellishments." Yet there are writers who say, "Yes, no doubt, Bernini's bouncing figures are theatrical, but, after all, their general effect is grandiose." The truth is, every great city needs a Parliament of Taste where questions of civic art could be debated publicly, with help from lantern slides. No writer can hope to do much in his defence of art. Indeed, books are studied so infrequently that they cannot draw public attention to the larger problems of architecture and — ; — ;

EUROPEAN, PERSIAN AND CHINESE 325

of Taste, decoration ; whereas free debates in a Parliament centring always around object-lessons, might restore to art the life of a great citizen. In this matter we owe much to Hosking, the Victorian pontist, who cried out against the blunders made in the ornamentation of bridges. As early as 1842 he told the truth boldly, declaring that the most eminent civil engineers, in their efforts to take hints from street buildings, had failed to produce anything but meanness or absurdity, or a combination of both. Hosking had faith

in three simple principles :

1. That bridges, in the combination of their leading

lines, should be bold and simple

2. That their passage over dangerous places ought to

be a secure highway ; and,

3. That in stone bridges far too much money had been wasted on the high finish of exterior surfaces. In very

ponderous language Hosking said :

" It may be fairly questioned whether Waterloo and London bridges would not have been finer objects had the masonry of their external faces been merely rough-axed, or even left scabbled, instead of being fair hammer-dressed and certainly many thousands of pounds might have been saved in the execution of Waterloo Bridge, and a much better result produced, by the omission of the coupled columns and their immediate accessories, and by the use of a plain parapet of a more reasonable height, instead of the high, 326 A BOOK OF BRIDGES the enormously expensive, and absurdly ugly balustraded enclosures which now aid the columns and their projected entablatures to deform a splendid structure." This Puritan outlook appeals to me, for I believe that good bridges should be as sternly efficient as were the Iron- sides of Cromwell's army. Their beauty is a thing apart from any cavalier-like finery of dressing ornament. It shows that all the parts of a bridge are co-ordinated with fine judgment, and that each part is in nice accord with its own work and with the great office which the bridge as a whole has to fulfil daily. When the railway viaduct at Ludgate Hill was finished, there was a public outcry because of its gaunt and shabby

ugliness ; but Londoners were appeased as soon as some "decorative" metalwork was nailed upon the parapets. This "ornament," a trumpery makeshift, was supposed to have given merit to an imbecile design that disgraced the main road to St. Paul's Cathedral. As things of this sort are allowed to happen in the heart of our great city, who

can have confidence in civic authorities ? What chance is there that new projects for bridges will be considered

intelligently ? In 1815, when Rennie began his bridge over the Thames at Southwark, neither the Government nor the City of

London employed him ; it was a Company that approved his designs, and financed the undertaking. At an expense of ;^8oo,ooo, three bad arches of cast-iron were put up

from " elegant " stone piers and abutments yet London ; EUROPEAN, PERSIAN AND CHINESE 327 was charmed by "a great feat of engineering," partly because 5780 tons of ironwork had been employed, and partly because the central arch had a span of 240 ft.

From 1819 to November 8, 1864, the Company was a toll gatherer on their industrial bridge ; then the toll was done away with, and the Company received from the City an industrial compensation. Here is a financial adventure which might have been undertaken to benefit a small township which had in its neighbourhood some new ironworks and collieries. Still more farcical was the public lottery that helped to collect money for the building of the first Westminster Bridge, between 1738 and 1750. Even now, after many lessons from past follies, London has made more than one muddle over the project of St.

Paul's Bridge. Not even the Tower Bridge, with all its blatant defects, has enabled the City to be alert and clever as a pontist. A more absurd structure than the Tower Bridge was never thrown across a strategic river. What would be the use of those ornate towers if the suspended roadway connecting them to the banksides were cut by a shell or by a falling bomb? And what anachronism could be sillier than that which has united the principle of metal suspension to an architecture cribbed partly from the Middle Ages, and partly from the French Renaissance? The many small windows, the peaked roofing, the absurdly impudent little turrets, the biscuit-like aspect of the meretricious masonry, the desperate effort to " artistic " be at any cost : all this, you 328 A BOOK OF BRIDGES

know, is at standing odds with the contemporary parts of the unhistoric bridge, parts huge in scale, but so com-

mercial that there is not a vestige of military forethought anywhere. It is mere perishable bulk. THK TOWER BRIDGE, LONDON

CANAL BRIDGE IN VENICE

CHAPTER THE FIFTH ON THE EVOLUTION OF UNFORTIFIED BRIDGES

BRANGWYN'S water-colour of the Pont Henri IV at Chatellerault, over the Vienne, represents a bridge built and fortified by an architect of the Renaissance, Charles Androuet du Cerceau. Here is a fact to be remembered, for Androuet du Cerceau was perhaps the latest European bridge-builder who tried to fit his work into a nation's policy of defence. From his time onward to our own no high road conducted over a river has been made in any respect a military way, safeguarded from the dangers of war, at least as much as possible. If Androuet du Cerceau had been asked to foretell the development of bridge-building, his answer could not have

been less militant than the Pont Henri IV ; he would have said that bridges, like battleships and fortified places, would continue to oppose the science of military attack, because their safety would be affected by all improvements in the methods and materials employed by armies. His view of life and art, as we see it in his work, has been the view of all thoughtful craftsmen. He believed that the genius of invention, age after age, set up her home in the ablest minds, and passed through an ordered growth, till at last she attained her culmination. As long as improvements could be made in the action of aggressive war, counter improve- 331 332 A BOOK OF BRIDGES merits could be made in the reaction of defence, for the art of inventing each new weapon would suggest a means by which its utility in war might be thwarted, and perhaps nullified.

But I do not think that Androuet du Cerceau realised to the full what competent bridges ought to have been to his generation. He was too mediaeval in his attitude to strife, and this defect was perhaps inevitable. You see, the Pont

Henri IV was erected between the years 1564 and 1609 ; and during these forty-five years the spirit of the times was dead against an efficient strategy both in defence and in attack. Soldiers of every rank were passing through a transition, unaided by much enthusiasm. Indeed, new methods were hated rather than liked, because they seemed to be less chivalric, or what the French called less " heroic," than were the ancient methods, though many of these had grown obsolescent. Alexandre Dumas wrote, several delightful books on this period in the evolution of fighting, when gunpowder was a war-god that no brave man was at

all eager to worship before an altar of unwieldy firearms. Soldiers liked a battle to be a duel at very close quarters, so they were not amused when they fired through a fog of suffocating smoke, and coughed and sneezed in a chorus, while tears dripped from their eyes. Here and there, of course, while Androuet du Cerceau was engaged upon his bastille bridge, "villainous saltpetre" had some ardent followers. Turn to the military writers of Queen Elizabeth's reign, for instance, and read the long dispute that went on o §5

M U O H

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EVOLUTION OF UNFORTIFIED BRIDGES 333 between the old school and the new. Some experts had a firm belief in the old archery statutes, while others put their trust in ponderous firearms that went off after much coaxing and never carried straight for a hundred yards.

In those days there were two handguns, both rather old, and their improvement baffled the ingenuity of gunsmiths. One was the petronel or arquebuse, which had come into vogue in 1480; the other was the musket, which in 1521, or thereabouts, was brought into use by the Emperor

Charles V, who believed in it because he had never tried to hold the "kicking demon" through a battle. For a long time petronels were discharged by a lighted match, but at the beginning of the sixteenth century a wheel-lock was invented, to be superseded at last—^about the year 1692—by the flint-lock. Progress was exceedingly halt-footed ; but one day a pious clergyman, the Rev. Mr. Forsythe, happened

to be startled by a very profane idea ; it seemed to him that gunpowder in a musket might be ignited by a percussion

cap. Good Forsythe ! Being very practical as well as pious

(these two qualities go together like body and soul, as a rule),

he patented his mother-idea, a.d. 1807 ; and in less than thirty years the principle of the percussion cap was accepted by the War Office, though public opinion in England cooed over Peace, believing that henceforth mankind would be satisfied with continual wars between Capital and Labour.

There is no need to sketch the equally slow improvements in the manufacture of cannon. Enough to say that among ;

334 A BOOK OF BRIDGES

Wellington's siege artillery in Spain there were Spanish guns dating from the Armada period. Briefly, then, from Androuet du Cerceau's time onward to the year 1857, when the old musket Brown Bess was put aside for ever, the dilatory progress of attack in war gave

bridge-builders every opportunity of keeping pace with it and of making their defence as thorough as possible. Yet nothing was done. Not even a single effort was made to evolve the old war-bridge into a modernised protection

and it is very far from easy to explain this quite sudden departure from a very old routine of defensive forethought. Several reasons have been given, of course, but they have no backbone and no brain. It was argued, for example, that bridges were as advantageous to an attack as to a defence, so the whole strategy of war would protect them quite enough. Even in our own time this very queer argument has been advocated, as if to prove that minds as well as eyes often suffer from astigmatism. What successful army is not hindered and harassed by guarding many

hundreds of defenceless bridges ? And what modern army

in retreat has ever failed to leave behind t an extra rear-

guard of broken bridges ? Let me give but one example. Sir John Moore could never have made his terrible march from Sahagun to Coruna, but for his good fortune in the matter of rivers and bridges. When Napoleon himself got within striking reach, near Benavente, on the torrent Esla, Moore's rearguard blew up three spans of the old bridge of Castro EVOLUTION OF UNFORTIFIED BRIDGES 335

Gonzalo ; and when the cavalry of the Imperial Guard found a deep crossing and forded the river into a wide poplared plain, Paget and the loth Hussars galloped through their broken ranks, destroying half of them, and capturing their general Lefebvre Desnouettes. Much later, when the narrow and snowbound Pass of Piedrafita was littered with dead British troops, all killed by hunger and cold and exhaustion, Moore was befriended by the great Roman bridge of Constantino, and by the noble viaduct of Corcul between Nogales and Becerrea. Paget was left behind with the rearguard, and in brilliant actions at the bridges he checked the pursuit, while Moore marched on toward Lugo. If a French spy had blown up the bridge of Con- stantino and the viaduct, after hearing of Moore's approach, the British would have been brought to a standstill, and from a desperate position there would have been little chance of escape. So the viaduct and the Roman bridge stood between victory and defeat; they saved the British and baffled the French. In fact, Moore reached Lugo without much further harrying.

Not only is there a bridge of Constantino in all campaigns, but we may be sure that as no country will ever wish to be invaded the airmen scouts of the future will try to destroy all bridges beyond their own frontiers, so as to cripple the enemy's prearranged movements. Defeat in the near future may be nothing more than a paralysis of communications, caused by bridge-wrecking airships and aeroplanes. Try to imagine what we should suffer, if we 336 A BOOK OF BRIDGES

lost in a single night eight or ten of the bridges that help to unite London to Edinburgh and Glasgow. To lose the

Forth Bridge alone would be a bad defeat; and yet, as I

have said, there are people still who argue that bridges need no protection because their utility in war is invaluable to both sides.*

This hollow argument was very active during the ferment of the Renaissance, which became to architecture what

a political party spirit is to an army. In fact, it was the Renaissance that produced the disintegrating party strife of rival "styles," and soon the followers of classic forms and ceremonies were more powerful than their opponents, who believed in the native genius of Gothic art. The aim of our classic men was to renew under our Northern sky an alien inspiration born and bred in the ardent climates of Greece and of Rome. In other words, they wished to repeat, by plodding and self-conscious effort, what Rome had done in architecture with the patient and slow methods of her colonisation. In this way they appealed to everybody who tried to seem erudite, and their endeavours entered that world of educated fashion where a false quantity was a greater sin than intemperance. Just as the chatty, delightful Montaigne wanted to hide his genius among profuse

* It is worth noting, as an example of British apathy in home defence, that the railway from Aldershot toward Southampton is for many miles a single line only, and that it passes over a good many gimcrack bridges and between some narrow and steep embankments, as in the neighbourhood of Medstead. The line is an open trap ; it could be shut up in a dozen places by a few intelligent spies, if spying did not generate an excessive caution as futile as cowardice. EVOLUTION OF UNFORTIFIED BRIDGES 337 gleanings from ancient writers, so most architects believed that they could do no good in life unless they tried to be Greek or Roman. Progress was no longer an organic growth, it was a copied fashion, an inconvenient mode. Not even a church could be built without help from pagan temples. Not an equestrian statue could be modelled unless a Christian of sorts, either king or warrior, put on the costume of a Caesar, and then straddled ill at ease across the back of a reasonable horse, which alone merited the long life of bronze. Amid this ferment of comic priggishness and pedantry young men served their apprenticeship, and became artists and craftsmen. Inevitably, bridge- builders were affected, and as prigs most of them did their work as public servants. One remarkable thing was the fussy interest that their projects excited. During the eighteenth century, for instance, a ridiculous ado was made about bridge-building. Voluntary guidance came from mathematicians, and chatter and hesitation implied that at last, for the first time in the history of the world, a reputable bridge would be erected. As for the results of all this flutter and fuss, they were usually out of joint with the public interests that bridges ought to have served efficiently. No attention was paid to military defence, and some famous men blundered like amateurs. Perronet was regarded as the most expert bridge- builder of his time ; his knowledge was prodigious, and yet he made astounding mistakes, which would have shamed such mediaeval masters as B^ndzet and Isembert. As an 338 A BOOK OF BRIDGES example I will mention his Pont de Neuilly-sur-Seine, which was finished in 1772.* The delicate operation of striking the centres, by freeing the arches from their supports, was begun only eighteen days after the keystones were put in their places, when the mortar was not yet hard enough to resist new pressure. In one great arch the crown sank twenty-three inches—truly a historic mishap, and for several reasons. The upper part of this arch in Perronet's

plan was an arc of a circle 320 ft. in diameter ; after the

mishap it became an arc of a circle whose diameter would be 518 ft, hence a stone arch of this size—518 ft. on the

chord line—might be constructed ! No wonder that writers have been astounded by the Pont de Neuilly-sur-Seine,

for it passed safely through a most dangerous experience. Perronet was saved, not by his good design, nor by his mathematical calculations, but by a rare stroke of good luck. Indeed, there are a good many technical faults in

his work at Neuilly. The piers are only fourteen feet

broad, too small to be in scale with the wide arches, and all lateral pressure travels along the bridge to the abutments. If one arch were cut the others would be endangered. In later years Perronet became wise, and told the French Govern- ment that two or three arches in every long bridge should have abutment piers, as a safeguard against mishaps in war.f

* This bridge is 250 metres long, and the five arches have equal spans of 40 metres. Perronet died in 1 791, at the age of eighty-three, and we study his best work at Mantes, Orl&ns, Nogent-sur-Seine, Pont- Saint -Maxence, Chateau -Thierry, and Neuilly-sur-Seine. His words run as follows t : "I think that it may be prudent, when designing bridges for rivers of great width, to introduce some strong piers, which in Case of need ;

EVOLUTION OF UNFORTIFIED BRIDGES 339

Several famous engineers had to learn by experience, like Perronet, that a self-conscious desire to be "scientific" had dangers of its own in bridge-building. Smeaton's bridge over the Tyne at Hexham was a tragic failure Labelye produced a very perishable bridge on the Thames at Westminster ; and learned engineering did not save the

Tay Bridge from catastrophe, though science welcomed it with a din of confident approval. The Tay Bridge was a railway track to connect the town of Dundee and the North British Railway System in Fife

it crossed the Firth of Tay about a mile and a half to the West of Dundee. Its length exceeded two miles, and journalists with rapture bragged about it as the longest iron bridge in the world. Even the responsible engineers, Thomas Bouch and A. D. Stewart, did not keep their heads while their work was being done, for they published in the " Encyclopaedia Britannica " a long article on their unfinished bridge—a fine example of modern vanity. Soon afterwards, on February 4th, 1877, the building , work was badly injured by a gale, yet in a few months—on September 25th, in fact—the over-confident engineers had the bridge

may serve as abutments, putting them at distances of three or four arches apart. Moreover, this arrangement will enable us to construct long bridges in different parts successively, and each part may be considered as a complete bridge, having its own independent abutments ; but strict care should be taken not to contract the beds of rivers by using too many thick piers." One of Perronet's immediate predecessors, the engineer Gabriel, built a bridge of this sort, over the Loire at Blois. He spaced his plan into eleven fine arches, and erected two abutment piers, placing them at four bays from each bankside, and leaving three bays between them. By this means his bridge was divided into three independent parts. 340 A BOOK OF BRIDGES

tested from end to end, and on the 31st of May, 1878, it was opened to train service. Thomas Bouch became Sir Thomas. No one suspected that a " scientific bridge " might be a trap for railway car-

riages. The structure was superlatively modern : huge, ugly, vulgar, meretricious, mechanical, and charmed also with a small cost of production, which included twenty human lives and ^^350,000. At this price, you will understand, the longest metal bridge in the world seemed very cheap and fascinating. Newspapers were overjoyed, of course, and declared that the Tay Bridge was admirably fitted for the rushing enterprise of a commercial time. Yet every part of it was ill with the cancer of cheapness, and in 1879 the disaster came, on a Sunday evening, three days after Christmas. At about seven o'clock a terrific gale struck the eighty-four spans of the bridge, making a gap of about

three thousand feet : and a few minutes later a North British mail-train drew near. Into the gap carriage after

carriage dived : about eighty passengers perished, down below in the raging waters. It was a lofty bridge, in some places 92 ft. above high tide, so the falling carriages turned more than one somersault before they plunged into the Firth of Tay.

The Board of Trade held an enquiry and issued a report, affirming " that the bridge had been badly designed, badly constructed, and badly maintained." True : but the verdict was without pity. Some excuse should have been made for the engineers' modernity. The Tay Bridge was no worse !

EVOLUTION OF UNFORTIFIED BRIDGES 341 than the popular spirit that liked screaming newspapers, and fevered excitements, and wild adventures in the quicksands of jerried workmanship. The Board of Trade published its report on the 3rd of July, 1880 ; and a few months later, on October 30th, Sir Thomas Bouch died of a broken heart. Perhaps the most humbling trial in his adversity was the foolish article written by his second in command, Mr. A. D. Stewart, who wanted to be quite contemporary " with the flying minutes. The " Encyclopaedia Britannica

deleted the article from its next edition, and printed . . .

some tame remarks on the disaster. . . . No public calamity has much effect on the modern mind. Tay Bridges and Titanics are like strong acts in a tragic play, whose influence we forget very soon. It is a thousand pities, for the next war may teach us, by frequent disasters, that machine-worship has been a mad gambler everywhere. Bridges suffered much from the priggishness of the Renais- sance, but they have suffered infinitely more from the ob- sessions that ruined Sir Thomas Bouch. Poor Bouch Not only did he wish to astonish the world by constructing an unparalleled bridge, wonderfully long, curved at both ends, and with a varying gradient. He desired also to prove to his employers that he could be a pattern of un-

usual economy. Worse still, he was so wrapped up in his calculations that he looked upon Nature with little respect. In other words, he tried to achieve " a great feat of engineering "—not often a fortunate enterprise. From the founding of his piers he ought to have learnt 342 A BOOK OF BRIDGES

that his work would be endangered partly by the repercussion

of railway traffic, and partly by the varied way in which the piers would feel the scour of tidal waters during bad weather. Fourteen piers on the southern side were built on rock, then for six piers the bed was a layer of hard material resting on silt, and from the twenty-second pier northward there was sand, with occasional beds of gravel mixed with boulders. Here was a site to inspire as much awed patience and care as the Bridge Friars gave untiringly to the Pont Saint- Esprit over the Rh6ne. Yet in Mr. Stewart's description there is but one emotion—a quiet self-confidence, as if the forces of Nature were as easy to manage as well-trained poodle dogs. II

be brief, it is evident that the bridge-building of Tomodern times—from the Renaissance to our own day—has been nothing more than a long series of experiments from which a good many important matters have been excluded. High artistic qualities were divorced from military forethought by the earlier pontists of the Renais- * sance ; then came the delicate swagger of a fidgety dilettant- ism, like that which built the Palladian Bridge in Prior Park,

about A.D. 1750 ; afterwards, by degrees, the industrial spirit began to assert itself; and in 1779 the first metal bridge was built in Europe. How different the history would have been, how much saner and finer, if bridge-builders had taken for their guide the all-sufficient principle that their work must be self-protective, not vulnerable and defenceless. From this principle the most wonderful varied work could have been evolved, generation after generation. By this time there would have been as much difference between an Elizabethan bridge and a modern stone bridge, as between Drake's "Golden Hind" and a super-Dreadnought. But the sedulous ape has been active everywhere ; and Europe to this day is proud when she builds in stone a few bridges

* Examples: See the index under the headings "Trezzo," "Ticino," " Pavia," and " Ammanati's Trinita at Florence." 343 344 A BOOK OF BRIDGES

that seem to be as good as their classic foreparents, though they break away from the classic principle of self-defence.

It is in metal bridges alone that we find a virile growth, a genuine evolution ; not often artistic, and as sensitive to

bombs as card castles are to a touch from your finger ; but yet a great evolution because it represents modern times. If we could summon to earth the spirits of the greatest bridge - builders—Caius Julius Lacer, ApoUodorus of Damascus, Isembert, B6n6zet, Ammanati, and several others—they would learn nothing much from our stonework, whereas a metal bridge here and there could not fail to strike awe into these spiritual beholders. Even Lacer would be awed by the colossal newness of the Forth Bridge, whose technical inspiration might have come from Vulcan, the god of furnaces, after his annual festival on the 23rd of August. And cannot you imagine what B€n6zet and Isem- bert would say to each other, in swift, excited French, when they gazed up and up at the airy film of road suspended over the wide Menai Straits ? This would be enough to convince them that a few recent bridge-builders had for- saken ancient forms in order to give expression to generative ideas.

The concept of metal bridges may have come to Europe from China. In the seventeenth century Kircher saw and described a Chinese bridge which seems to have been a genuine suspension bridge of metal, a true forerunner of the Pont de la Caille, over the Pass of Usses, and of the immense Pont de Beaucaire, which in four spans unites X -

O ft

EVOLUTION OF UNFORTIFIED BRIDGES 345

Beaucaire to Tarascon, covering a distance of more than 438 metres.* Who can explain why backward China has hit upon many fertile ideas before the more enterprising

nations ? Why has she not learnt to rule the world ? Per- haps her body has been too numerous for her brain. On my table lies the photograph of a bridge which may be similar

to the one admired by Athanase Kircher. It is an iron swing bridge in Western China, near Auhsien. There are three piers, two of stone, and the other a makeshift of two timber piles joined together at top by a log upon which the

footway rests. The carpentry of the footway is primitive :

across the long bearing beams, which are not at all thick or

heavy, a great many slim laths lie unevenly ; and up the

middle of the bridge, from end to end, is a narrow path

made with long and flat planks which rest upon the trans-

* See Degrand's "Fonts en Magonnerie," Tom. 2, p. 24, note 3. See also Dalquie's translation of Kircher's book, published at Amsterdam in 1670. There is a reference to iron in a bridge on p. 288, but Degrand's information must be taken " from the following passage : L'on voit un pont dans la Province de Junnan, qu'on a basti sur un torrent, lequel roule ses flots impetueux dans le panchant d'une profonde vallee. C'est un commun sentiment qu'il fflt basti en Fan 65 apres la naissance de

Jesus Christ par I'ordre de I'Empereur Mingus, sorti de la famille Hame ; il n'est pas fait de brique ny de pierre ; mais on a attache de grosses chaisnes [chalnes] k ces deux montagnes qui vont d'une extremite k I'autre, au dessus desquelles on a mis des ais pour faciliter le passage des voyageurs. Ce pont, qui a vingt chaisnes, a 20 perches de long qui font 140 pieds: Ton dit que quand beaucoup de personnes passent dessus, ou qu'il y a quelque grand fardeau, il branle si fort qu'il fait peur a ceux qui y sont " (p. 289). This description is vivid, and M. Degrand regards the chains as " chains of iron. He says : Kircher mentionne I'existence . . . d'un pont composd de chaines de fer supportant, en travers d'une vallee profonde, un tablier en charpente d'une grande longueur, c'est-a-dire un veritable pont suspendu, ayant precede sans doute de plusieurs siecles les ponts du mSme genre construits a I'epoque moderne en Europe et aux Etats-Unis." 346 A BOOK OF BRIDGES verse timbering. As for the iron suspension, it is a chain of thick and short rods which are linked firmly together. These rods, thus looped at each end and interlocked, run in two lines from abutment to abutment, making a sort of parapet at each side of the bridge. Bamboo rods suspend the footway to the iron chains, which pass over the abutments to be fastened securely on the ground. There are four abutments, but my photograph shows thing of all the only one ; and it omits also the main — means by which the metal chains are anchored. Still, the abutment is entertaining. It is a stone pillar about five feet high, perhaps a little more or less ; it seems to be old, and from two holes pierced through it we learn that several experiments were made before the right leverage was obtained. The first hole was too low down, so another was drilled about 12 inches above it, and through this second hole the chain was passed, then tugged down to its anchorage. Even then the suspension was not effective, the hole or "saddle" being still not high enough above the footway, and the builders knew not what to do. Not only was there insufficient space for a third hole, but very few makers of suspension bridges have been reasonable enough to pass their metal chains over the summits of stone pillars and towers. The Chinese workmen at Auhsien were not more foolish than many European engineers have been, for their perforated pillars are not a bit worse than the perforated towers through which suspension chains pass at Clifton and at Budapest, not to mention many other familiar examples. a;

EVOLUTION OF UNFORTIFIED BRIDGES 347

So determined were the Chinese to overcome their difficulties without using the summit of their pillar, that they cut away the stone until they came to the second hole or saddle, and then they thrust a lump of iron under the taut chain.

Next, to increase the tension still more, they put up a smaller pillar perhaps a yard from the first one, forcing it under the iron rods, which at this point strain downward to their anchorage. Curiously enough, the lesser pillar— sort of understudy—is used as an architect would employ it : along the top a groove is hollowed, and the chain rests in the groove and then dips down at a sharp angle. Perhaps, then, the smaller pillar is fairly new, while the larger one is old. The Rev. O. M. Jackson* knows this bridge very well he lived for five years at Auhsien, and on one occasion the whole bridge was washed away by a spate. For months

the iron chains lay here and there on the river-bed ; and as floods are frequent, and the bridge is not a high one, very little of the workmanship has had a chance of growing hoar.

The pillars have the best chance ; and I suppose the iron chains are worth saving from the river whenever the bridge is reconstructed.

I have lingered over Auhsien Suspension Bridge not because of its craftsmanship, but because it marks a primitive phase in the evolution of metal bridges. Perhaps the example seen by Kircher was less rude ; and perhaps the principle of its construction may have been precisely like

* See Index for other references to Mr. Jackson. 348 A BOOK OF BRIDGES that in the bamboo swing bridges of Western China. In * these there are four huge cables of twisted bamboo : two of them carry the footway, while the upper ones serve a side braces double purpose : a strong netting on each them to the lower cables, giving another support to the footway, and forming a sort of hammock a good deal taller than an average man. It is within this deep hammock that everybody walks across a bamboo swing bridge, which in a high wind is as enjoyable as a rowing-boat. At each abutment

there is a gabled entrance gate, where the four cables are screwed up.f Displace the bamboo cables for iron chains, and we get at once, perhaps, an idea of the bridge that Kircher regarded as " merveilleux." As Kircher's book was published in 1670, an iron bridge ought to have been built in Europe before the middle of the eighteenth century. An attempt to build one was made in 1755 at Lyons, but it failed. An arch was put together in a builder's yard and then the project was abandoned as too

costly ! But the idea was handed on somehow to an English ironmaster, Abraham Darby, of Coalbrookdale, who in 1779 won a great success by bridging the Severn with a very useful arch of cast-iron, having a rise of 50 feet, and a span

of 100 ft. 6 ins. The cost of it is not known, but the weight

* Marco Polo describes very well how the bamboo in China is twisted or plaited " into cordage. He says : They have canes of the length of fifteen paces, which they split, in their whole length, into very thin pieces, and these, by twisting them together, they form into ropes three hundred paces long. So skilfully are they manufactured, that they are equal in strength to cordage made of hemp." t I take this description from two photographs belonging to the Church Mis- sionary Society. EVOLUTION OF UNFORTIFIED BRIDGES 349 of metal employed was 378^ tons. The design is bold, and the arch handsome. Every pontist should get a photograph of Coalbrookdale Bridge. Already it is out of date, and its value as history will not save it from destruction. A few years later, in 1796, Rowland Burdon followed the example set by Abraham Darby, but not as a mere copyist, his Wearmouth Bridge being an arch of open cast- iron panels, which act as voussoirs. The span is 236 feet, with a rise of 34 feet ; the springings are 95 feet above the river-bed ; at first the footway was rather narrow, but in

1858 it was widened by Robert Stephenson. Rowland Burdon used 260 tons of iron, and his work cost only ^27,000. Soon afterwards, in a great cast-iron arch thrown over the Spey, Telford made new experiments, and, as Professor Fleeming Jenkin has said, his bridge at Craigellachie marked " a great advance in the conception of what was the safest form in which to apply cast-iron to an arch." But more than this was expected from an engineer of Telford's reputation, and nothing more came from him,

unfortunately. In fact, Telford divorced his work from the good sense of good design, which Darby and Burdon had endeavoured to respect. At each abutment he put up a silly tower pierced with arrow-slits and armed with battlements, advertising a farce of warlike make-believe which scores of foolish engineers would copy and adapt, while leaving their bridges entirely unfortified.

A bridge here and there is supposed to be all right. 350 A BOOK OF BRIDGES

Take, for instance, the Forth Bridge, with his 51,000 tons

of steel, and his amazing cost, about ^^3,000,000 ; he is looked upon as a " safe " bridge, and safe he is if we forget what bombs and shells can do in a few seconds. At each

end of this bridge the railway is carried by trivial columns forming the approach viaducts, and these a naval gun would blow to smithereens. A bomb falling upon them from an airship might put the whole bridge out of action. Further, the columns are comically out of scale with those gigantic pyramids of steel bars which counterbalance the centre girders, and yet seem to play at leapfrog in two bounds of

1 7 10 ft. each, and in two lesser jumps of 680 ft. each. Yes,

the Forth Bridge looks formidably alive and active ; he is to modern engineering what the Ichthyosaurus became to

our knowledge of prehistoric animals : a semi-marine

colossus, fit to be kept for ever as a tremendous danger happily extinct.

Several years ago, in the " Builder," I drew attention to the defenceless character of this huge viaduct over a strategic waterway, and now I return to this topic at the beginning

of a war that may well be the most terrible in all history. To-day is the 3rd of August, 1914; and the world knows that Germany has occupied Luxemburg, a neutral State, has poured her troops into Belgium, the naval key of Great Britain, and has violated the French frontier without declaring war. Here is the swift "morality" of lightning. In the strategy of war, non-moral Powers may gain over us a horrible advantage. England talks so much about peace EVOLUTION OF UNFORTIFIED BRIDGES 351 and honour that felon Germany is able to plan at her ease great military movements of surprise as fateful as victories on stricken fields. Before this little book is published " the black bullets of Destiny " will have been cast in several countries ; and not a battle will be won, nor a skirmish fought, without either help or hindrance from those soldiers unprepared that we call viaducts and bridges. Already many have been blown up in Belgium and in Servia ; and by night and day, throughout Europe, men are trying to guard every bridge of vital importance to the concentration of troops. Here in England this protection is not always as alert and thorough as it ought to be. I am writing in

Hampshire, near by the main line from Aldershot ; within

a walk of three minutes there is a high railway bridge over

a road, and a few hours ago it was unguarded from the road. Yesterday evening, after dark, a German spy could have

destroyed it, for I passed under its vault and found no one

keeping watch and ward.* Instead, I encountered that supine national folly which has withheld our young men from national service, because of the rich liberty which we are supposed to get somehow from cooing claptrap, and Norman Angells, and the future pacification of mankind. Whatever this fateful war may bring to us and to others,

the defenceless bridge will have to be reconsidered ; and for

this reason its evolution attracts me even now, despite the darkling uncertainty that encompasses every hour of the day. The Forth Bridge, all shatterable bulk and no beauty

* On the 4th of August this important bridge was guarded by Territorials. 352 A BOOK OF BRIDGES

and grace, does full justice to our industrialism, but yet he belongs, not to the public spirit of Great Britain, but to the

spirit of the age everywhere ; for in other lands he has a great many rivals not a whit less huge and vulnerable. As an example, we will take the Illinois and St. Louis Bridge, really a fine work of his kind, dating from 1873. He crosses the Mississippi, which at St. Louis flows in a single channel 534 yards wide and 8 feet deep at extreme low water. The greatest range between high and low water is

41 feet. There are three ribbed arches of cast steel, the middle one with a span of 520 feet, while the others are

18 feet narrower. If it was worth while for the sake of public convenience to erect this great highway above a wide and dangerous river, it was also worth while for the sake of public convenience that the width of the arches should be determined by the probable dangers to which the bridge would be exposed in commercial strikes and in other wars. Human gunpowder is not a rare thing in the United States of America. The black race there has a population that increases rapidly, and some day it may breed a great soldier, a dark Napoleon, who will find it no difficult task to organise a widespread society of bridge-wreckers. No truisms are more common than unexpected events. Let us then ask whether it would be possible swiftly to repair a metal arch having a span of 520 feet. If not, why build a huge and costly structure with steel-ribbed arches which are much too wide ? What if one of them was destroyed at a time when the double railway track over the river, and the wide road- 2

EVOLUTION OF UNFORTIFIED BRIDGES 353 way above for other traffic, were necessary to bring reinforce- ments to a stricken army ? These questions were too unmercantile to be considered by the chief engineer, Captain James B. Eads, a very scientific person, who was entirely of a piece with our European pontists. Not a scrap of attention did he pay to mihtary matters. Every account of Captain Eads and his bridge bombards us with technical details. We are expected to gape with admiration because jQ6o per ton of 2000 lbs. was the price paid for 2500 tons of cast-steel. Wrought- iron in a ton of 2000 lbs. cost jQ^o, and 500 tons at this price were used. Rolled-iron in a ton of 2000 lbs. cost ^28, and 1000 tons at this price were employed, together with 200 tons of cast-iron at j^i6 per ton, the ton in this case being 2240 lbs. Here indeed is a golden target for bombs and for modern artillery ! Every bridge in the United States of America is a target of this sort in one form or another. There are bonfire timber bridges, for example, exceedingly deft and excessively

high ; sometimes their piers are nothing more than large wooden frames piled one on top of another, up and up and up, till at last they are tall enough to be known as great sky- ticklers. One example is 234 feet high. It is the great Portage Bridge spanning the Genesee River, in the State of New York, on a railroad between New York and Buffalo.

It looks like a miracle of carpentry, this wonderful bridge of its length is 240 metres, and the piers—sixteen frames ; romantic scaffoldings—form immense triangles with flat- 2 A 354 A BOOK OF BRIDGES tened summits upon which a double gallery rests as a firm support for the railway. Each scaffolding rises from a pile of masonry nine metres higher than water-level, so that floods do not break their force against the timber frames.

Good heavens above, how this bridge would burn ! But it has a quite modern fascination : its cost of production was cheap !—cheap in comparison with the estimated price of a stone bridge with the same length and aviated height. This wooden structure cost about ;^36,ooo, for the pride of trade likes to pay as little as possible for the largest amount of very perishable insecurity. Then, of course, there are sky-tickling metal bridges, and these spindle-shanked devotees of peace are popular also in

Canada. All this work is nothing but industrial engineering, like the mighty bridges at New York, though these do try to look somewhat architectural. One specimen, indeed, a vast structure called the New Manhattan Bridge, has marvellously long suspension cables which do not go through a. tower or gateway ; they actually pass over their supports in logical a manner. What a blessing ! On the other hand, Brooklyn Bridge at New York has the same mistake as our suspension bridge at Clifton (p. 346) ; and the pierced towers, each with two lancet-shaped openings, are affected and trivial. Brooklyn Bridge has a total length of nearly

1 141 yards, and between the two towers there is a span of 1595 feet. The roadway is upheld by four galvanised steel cables not less than sixteen inches in diameter. Think of

that ! Try to imagine a span 1595 feet wide ! Suppose an EVOLUTION OF UNFORTIFIED BRIDGES 355 airship crippled it with some large bombs, how in the world could repairs be made ?

Briefly, then, modern bridges everywhere are anti-social. When war is afoot, they imperil the best-made plans of

strategists ; and even in strikes they have to be guarded by soldiers, as if they were convents where dethroned queens lived unhappily with suffragette princesses. Though we have lived for many years on the brink of war, every highway in Europe as in America is at the mercy of bridge- wreckers. Is it not dumbfounding that no respect has been paid anywhere to the social guardianship that bridges and roads ought to perform ? Why has this all-important matter been forgotten? It has been made memorable a great many times in history, ever since Horatius Codes and his two companions held the Pons Sublicius against the whole Etruscan Army under Porsena,—a lesson never forgotten by Roman citizens. When Lord Surrey, before the battle of Flodden Field, outwitted the Scotch by throwing his army across the Till by the beautiful old Twizel Bridge ; or when Charles the Second, routed at Worcester, fled by Old Pershore Bridge into the Bredon Hills, England received one of many warnings that a secure passage over rivers might be to her at any moment as valuable as an army corps. Why has she failed to take this lesson to heart ? No railway is protected by two or three branch lines over an important river, so that two or three bridges—not near together, but separated by a mile or two—would have to be destroyed before the river would be —

356 A BOOK OF BRIDGES closed to the passage of troops and of food supplies. Understudy lines and bridges would be invaluable to defensive strategy. More than a century has gone over since Perronet warned France that bridges across great rivers ought to be of a kind which would facilitate makeshift repairs after mishaps in war. He spoke earnestly, but in vain ; for the conception of trade as war had not yet been forced upon the world by modernised industrialism, with its civil strikes and its international competitions. If Perronet had been able to add his foresight to the great traditions of the Fonts et ChaussSes, his countrymen, probably, would have been loyal to his excellent advice, because the French have a Roman logic and they love their roads and bridges. But in France, as in other countries, a craze for engineering feats took possession of the public mind, excluding many other considerations. I know not how many perishable bridges exist at this moment in France, but I can give the figures for 1873. In that year there were one thousand nine hundred and eighty-two. Their total length was 106 kilometres, and their total cost was 286,507,761 francs.

Here are some of the more expensive examples :

(i) Pont de Bordeaux, 501 metres ; 6,850,000 francs.

(2) Pont de Roanne, 232 metres ; 6,438,561 francs.

(3) Paris, Pont d'J^na, 6,135,105 francs.

(4) Pont Saint-Esprit, on the Rhdne, 4,500,000 francs.

(5) Pont de Libourne, on the Dordogne, 4,236,248 francs. —

EVOLUTION OF UNFORTIFIED BRIDGES 357

Tours, on the Loire, metres (6) 434 ; 4,224,639 francs. Paris, Pont Neuf, metres (7) 231 ; 4,000,000 francs.

Compare these figures with those of some British bridges :

(i) The hideous Britannia Bridge over the Menai Straits,

151 1 feet long, cost j^6o 1,865.

(2) Westminister Bridge, London, 1160 feet; ^^235,000, or j^202 per foot run.

Boyne, feet (3) 550 ; ^^ 140,000, about ;!<^254 per foot run.

(4) Southwark Bridge, London, built in 1819, ^^800,000; it contains 5780 tons of iron.

(5) Vauxhall Bridge, London, built in 18 16, ;^30o,ooo.

(6) New London Bridge, 1005 feet long, ^1,458,311.

(7) Forth Bridge, about ^^3,000,000.

We see, then, that the bridges of civilization, when viewed merely as financial investments, are valuable enough

to be made self-defensive.* Yet it happens that I am the only writer who has tried to draw public attention to the ease with which any bridge in England could be crippled.

And the trouble is that engineers hold the field, because the man of business finds in their work a hard routine that looks

practical and mercantile. What we need is the influence of architects. For capable architects have the genius of artists, and when artists give their minds to practical affairs they show a range of common sense that men of trade rarely

* Not all bridges should be military, of course, since those near a frontier may have to be destroyed at a moment's notice in order to check the advance of a surprise attack. 358 A BOOK OF BRIDGES equal. It is in their nature to look at a question from all

sides till they see it amply and as a whole, while men of trade isolate two or three things from many, and accept them tenaciously as the only things that merit attention.

But in our social life and strife there are certain new- comers that will compel the world to reconsider its wrong attitude to bridge-building. I refer to airships and to aviation, with their threatened wars from overhead. A good many bridges over strategical waterways can be displaced by tunnels, but many others must be armoured with cone- shaped roofs. Art and science have done wonderful things for the modern battleship, and now—now they must invent and perfect a new battle-bridge, fit to protect arterial highways from " progress."

It is the morning of the 4th of August, and I have just read the latest war news. The whole life of Europe is a note of interrogation, infinitely sinister and tragic. What is destined to happen ? Which nations are doomed to perish ? What navy will go down into the deep ? Which airmen will make the most successful attacks on those bridges that govern the distribution of food supplies ? Will the equity of Europe triumph, or will German felony succeed******#?

Three months have passed, and I add a few lines to my page proofs. Many events have illustrated and confirmed EVOLUTION OF UNFORTIFIED BRIDGES 359 the main arguments of this monograph. Everywhere defenceless bridges have been the cause of much anxiety, and dozens have been destroyed because they could not be turned into rearguard defences. Wellington said that his sappers in five minutes could blow up a modern bridge. In the present campaign sappers have done this work under fire, mining strategic highways being a simple job. How ludicrously tragic is the contrast between the building of a modern bridge and its easy demolition ! A little common sense would have flanked each entrance with a Brialmont fort, and would have given to the bridge itself an armoured efficiency. Every bridge between the French frontiers and Paris ought to have been as effective as a super- Dreadnought. So the use of battleship steel in bridge- building is one thing that engineers must consider with the utmost care after Germany has been overthrown. If they do no more than follow their foolish old routine, then their work will be a crime against patriotism. In other respects the Great War has been a wondrous varied surprise, bringing weakness to the strong and power to the weak. Germany has been humbled both by little

Belgium and by the little British army ; her prestige has dwindled so much that fighting mechanisms are regarded no longer as superior to fighting men. In true discipline there is an art of humane pride, and Germany has crushed it out of her automatic battalions, preferring an organised cruelty as insensitive as a railway accident, and a system of lying that rivals Munchausen's. Even her learned 36o A BOOK OF BRIDGES

professors fill current history with explosive lies, just as her seamen before the declaration of hostilities dropped mines in the North Sea from trawlers that flew the British

flag. If victory could be won by vile misdeeds, Germany would be unconquerable. Never before has a powerful nation been so corrupted by forty years of unscrupulous vainglory. Her ambition is to Europe what cancer is to a human body—a ravaging disease which may break out again after the best surgeons have finished their work. Already she has tried to postpone the operation by making overtures to stop the necessary bloodshed. Germany wants to give in before the British Empire can put a million

troops in the field, because she knows not only that Allies often quarrel during the negotiations that rearrange maps, but that such quarrels occur most often when a great

country has a little army in absolute antagonism with widespread interests of a vital sort. And this, moreover, is not the only peril. In the British Isles many thousands

of peace-fanatics bide their time ; some of them are active

already as pro-Germans ; many others declare that they have no wish to humble the German people, who now approve every act of a Hunnish despotism elaborated by

their Government ; and when our British sentimentalists, aided by several Radical newspapers, begin a campaign of

shrieking claptrap, a just resentment will be felt by France and Russia. So the warfare of diplomacy may be more dangerous to the Allies than the warfare of stricken fields. We must wait and see. But the present position confirms EVOLUTION OF UNFORTIFIED BRIDGES 361

another argument in this monograph : namely, that those who decline to see the perpetual strife that reigns in all human affairs, and who babble in a routine of fixed ideas about the illusion called peace, are quite as perilous to a country as were the creeds of bloodshed which many German writers advertised, taking liberties with the ingenuous pacifism coddled by British Governments. Let us delete from every dictionary the lying word peace ; and let us believe firmly in the simple truth that strife everywhere is the historian of life. The strife in all

its phases ought to be well trained and chivalric, of course ; and it needs vast improvements in the campaigns of business warfare. Every slum, for example, is very much worse than the longest battle with firearms, because it endures for ages ; and what chivalry in the wars of trade is as noble as that which grants to young men the privilege of defending the old age of their country from danger and dishonour ?

RAIN

APPENDICES

APPENDIX I CHINESE GABLED BRIDGES MARCO POLO found them in several places, particularly in Hang-cheu, the ancient capital of Southern China. This noble city has on one side the Si-hu, or western

lake, and on the other is the vast river Tsien-tang-kiang, which at

high tide is nearly four miles in width. Its waters are distributed by canals through every quarter of Hang-cheu, so that many bridges are necessary. Towards the end of the thirteenth century, when Marco Polo made visits to Hang-cheu (which he described as Kin-sai, or the "celestial city"), bridges over the canals were so frequent that popular opinion, glad to show off an Oriental exaggeration, declared their number to be twelve thousand, though a census had not been taken. "Those which are thrown over the principal canals," says Polo, "and are connected with the main streets, have

arches so high, and built with so much skill, that vessels with their masts can pass under them, whilst, at the same time, carts and

horses are passing over their heads,—so well is the slope from the streets adapted to the height of the arch." And another early traveller, P. Le Comte, with graphic brevity, writes as follows of " the grand canal : Outre ces digues, on a basti une infinite de ponts

pour la communication des terres : ils sont de trois, de cinq, et de

sept arches ; celle du milieu est extraordinairement haute, afin que " les barques en passant ne soient pas obligees d'abaisser leurs masts

(" Nouv. M6m. de la Chine," Tom. i, p. 161). There is also a description written by Barrow, who visited Hang-cheu before 1830, and 365 366 A BOOK OF BRIDGES whose testimony confirms that of much earlier travellers. Barrow was impressed by " a great variety of bridges" that spanned most of the canals. Some had "piers of such an extraordinary height, that the largest vessels, of two hundred tons, sailed under them without striking their masts." Last of all, in recent photographs the stone bridges of China are steep whenever they are built with arches, so we can follow the Chinese gabled bridge from our own time to the thirteenth century. They came into use partly because they were convenient to shipping, and partly because they could be erected from low embankments. —

APPENDIX II STEEP ROMAN BRIDGES YOUNG pontists are always eager to know whether the Romans built gabled bridges, setting an example both to the

East and to the West. On this topic there is little evidence, for most of the Roman bridges were built of timber. At Rimini, in the famous bridge of Augustus, there is an ascent at each end over the abutment, and at Alcantarilla, near Utrera, in Andalusia, the

Roman bridge may be described as hog-backed. It crosses the Salado, a tributary of the Guadalquivir. Recently Mr. Edgar

Wigram visited Alcantarilla, and he writes to me as follows :

" The Roman bridge there is most interesting, almost untouched by restoration, yet it remains serviceable. It is a hog-backed structure of two arches, each about thirty-five feet in span ; the width between the parapets may be fifteen feet, but a swarm of bees happened to be merry on the bridge, so I did not try to take accurate measurements. The voussoirs and spandrils are of stone with hammer-dressed faces, while the soffits are formed with wedge- shaped blocks of concrete, and a certain amount of brick is found in the piers. Along the river on one side are remains of an embankment. A tower stands at one end of the bridge, placed centrally to it, so the road has to make a double turn to pass. One wall of the tower is destroyed, but the other three are still about half their original height. The lower courses are of big stone blocks, while

' the upper part of the faces are filled in with tapia ' concrete ; the angles (or at least the two which still remain intact) are grooved with 367 368 A BOOK OF BRIDGES

a queer circular recess some twelve inches in diameter. What pur-

pose these grooves can have served I do not know. They look as

if they may have been intended to accommodate the hinge-posts of

gates ; but a gate hung in them would hardly swing through ninety

degrees. If a second tower ever existed, its foundations do not

appear above ground-level. At Cordova there is only one tower,

and it stands in a very similar position. By analogy, then, we may suppose that a second tower was built at Alcantarilla not ; yet the grooved angles seem to require a corresponding tower with corre-

sponding grooves, if gates were ever swung from them. Perhaps the grooves formed pivots for some sort of defensive engine, such

' as the iron hand ' of Archimedes, which seems to have been some

sort of great grappling crane. The angles of a tower would be fit places to plant a weapon of this description ; but we need help from an expert in ancient military engineering."

INDEX AND GLOSSARY

Abbas II, Shah of Persia, 1641-66 ; the Pul-i-Khaju at Isfahan dates from his time, 215.

Abbot's Bridge, Bury St. Edmunds, its ecclesiastical workmanship and its double ring of voussoirs, 305 footnote.

Aberystwyth, South Wales, the Devil's Bridge at, over the Afon Mynach, its old legend, 66, 67, 68.

Abingdon Bridge, Ballad of, by Richard Fannande Iremonger, dated 1458, its value to pontists, 208, 251-2. Abutment Piers, these are so strong that they act as abutments, and hence the loss of one arch does not overthrow another by withdrawing a counterbalancing thrust from one side of a pier. Perronet says: "The piers of bridges ought to be considered either as performing the duty of abutments, or as relieved of this duty by the counteraction of the collateral arches, through which the thrust is carried from abutment to abutment of the bridge. In the first case, piers should resist lateral pressure as capably as the abutments themselves, that they may withstand the side thrust of the arch-stones which tends to overturn them, and which increases by so much the more as the arches are flatter and the piers loftier. In the second case, the piers must have substance enough to carry the weight of the two half arches raised upon the two sides of each pier respectively," together with those parts of the upper works that lie over each pier. Roman piers are abutments also, as a rule, their thickness ranging from a half to a third of

the spaces between them ; the effect of this great bulk both on the current of rivers and on Roman bridge-building is described on page 284. A great many bridges of the Middle Ages had abutment piers, but in many cases

they were dams rather than bridges ; the piers occupied far too much space in the waterways and caused terrible floods like those that happened at Lyons in the winter of 1859-40. Old London Bridge was a perforated

dam (p. 220) ; and after her removal in 1831-2, an improvement was noted in the drainage, and consequently in the healthiness, of all the lower parts of London above bridge. So abutment piers, when they are either too thick or too numerous, are social evils. This fact was recognised by bridgemen at the beginning of the sixteenth century, when some diminution took place in the relative proportion of the piers of bridges to the spans of

arches ; and little by little a new routine came into vogue and displaced the abutment pier from all service. Here was another social evil, for long arched bridges with no abutment piers were unmilitary, and therefore at 371 372 A BOOK OF BRIDGES

odds with the strategy of national defence. Not an arch could be cut without endangering its neighbouring arches. Gabriel and Perronet, after considering this fact, wished abutment piers to be revived in a discreetly effective manner (footnote p. 338), but their excellent advice was not followed. Defenceless bridges became fashionable everywhere, though they added innumerable anxieties to the perils of military war. The Valentr^ Bridge at Cahors should be studied as the best example of a mediaeval battle-bridge, but the abutment piers might have been improved, 283-4. To-day a new era in bridge-building is heralded by rapid improve-

ments in airships and aeroplanes ; there should be a congress of architects and engineers to discuss the urgent questions of national defence that the piers and footways of bridges bring before our common sense, 335, 358. Abutments, the end supports of a bridge.

Abydos, one of the most ancient cities of Upper Egypt ; an early arch there in the temple of Rameses II, 155.

AcARNANiA, the most westerly province of ancient Greece ; early examples of the semicircular arch, 160. Accidents, the, of Civilization, they claim as many lives in a century as do

the casualties on stricken fields, j^d, footnote. Accidents to Old London Bridge, 218.

Adam of Evolution, the, had sense enough probably to lay a flat stone from

bank to bank of a deep rivulet, 60; his personal appearance, 115-16 ; his

character, 116, 117; his attitude to tree-bridges, 116 ; and to several other bridges made by Nature, 118-19.

Addy, Sidney O., his book on "The Evolution of the English House," 139 footnote. Adrian IV, Pope, sanctioned in 11 56 the building of a chapel on the Roman bridge over the Vidourle at Pont Ambroise in France, 82.

^LiUt:, Pons, built by Hadrian in a.d. 13, 194, 324.

Aeroplanes, in their relation to bridge-building and national defence, vii, viii, 59, 335. 358- African Natives, their tree-bridges and their want of initiative, 123, 148. Afon Mynach, the cataract in South Wales, 67. Agowe District, Equatorial Central Africa, a primitive suspension bridge partly made with very thick vines, 148. Agrippa, son-in-law of Augustus Caesar, the reputed founder of the Pont du Gard, about 19 years B.C., 174. Airmen Scouts, their relations to future wars, 335, 358. Airships, their influence on bndge-building and on national defence, vii, viii, 59, 335, 358- AiRVAULT, Deux-Sevres, Le Pont de Vernay, a famous bridge with ribbed arches, French Romanesque Period, Twelfth Century. See the colour plate facing page 96, and the remarks on ribbed arches, 93-100. INDEX AND GLOSSARY 373

Alameri, Halaf, a famous bridge-builder in Spain, 286-7.

Albarracin, in Aragon, its timber bridge with stone piers, 275. Albi Bridge over the Tarn, famous in the history of pointed arches, 84, 86, 89, go, 91, 92. See also the illustrations facing pages 72 and 92.

Albi, Railway Bridge at, see the colour plate facing page 8.

Alcantara, in Spain, and the Puente Trajan over the Tagus ; a wonderful Roman bridge, 6, 16, 153, 183 et seq., 212, 321.

Alcantara at Toledo, a famous old war-bridge, 285-7 : and see the two colour prints facing pages 33 and 284. Alcantarilla, in Spain, its most interesting Roman war-bridge, 30, 182, and 367-8. Aldeguela, Jose Martin, a great Spanish bridge-builder of the i8th century, 2^0 footnote. Aldershot, its vulnerable bridges on a single-line railway that runs toward

Southampton, -JiTJo footnote. Alexander the Great, his possible influence on bridge-building in India, 272.

Alkxandrine Aqueduct, the decoration of its wall surfaces with coloured tufa arranged in geometrical patterns, 190.

Algeria, Pont Sidi Rached at Constantine, built between 1908 and 1912, 53. Ali Verdi Khan, the Bridge of, at Isfahan in Persia, over the Zendeh Rud, 212, 268-70.

Allbutt, Sir Clifford, on the immaturity of modern science, 7.

Allen's " History of the County of York," 2^^^ footnote. Alonso of Spain, in 1258, repaired the Alcdntara at Toledo, 287.

Altamira Cavern, near Santander, its prehistoric art relics, 62. Ambroise, Pont, over the Vidourle, a Roman bridge, now a ruin, 82, 177. America, South, primitive bridges there, as described by Don Antonio de Ulloa, 13s, 146-7.

America, United States of, their timber bridges, 142-3 ; their defenceless modern bridges, 352-4. Ammanati, Bartolomeo, Florentine architect of the i6th century, his great bridge over the Arno, 222, 316-17. Amsterdam, the Hoogesluis at, a strumpet of a bridge, 323.

Angers, a suspension bridge at, how it gave way when soldiers were passing across it, 1^^ footnote. Anchorage of Chain Bridges, at Auhsien in China, 346-7. Ancus Marcius, and the Pons Sublicius, 64, 140. Angell, Norman, a firm believer in the illusion called peace, 351. Angelo, Ponte Sant', at Rome, anciently the Pons ^lius, 194, 324. 374 A BOOK OF BRIDGES

Anio Vetus, Roman Aqueduct, its great height, 190.

1 Antiquaries, their aloofness from public interests, 9, 1 ; very often they mis-

take facts for truths, 9-1 1 ; their pedantry and its results, u ; their attitude to the Clapper Bridges over Dartmoor rivers, 100, 102, 103.

Antiquary, an old, his bad advice to young pontists, 8-10. Antonio da Ponte, in 1588, began to erect the Rialto, 212. Ants, their intelligence, no; they bore tunnels under water and make bridges

over running streams, 122 ; the fertility of their minute cerebral ganglia contrasted with the dullness of the average human brain, 239-40.

Apathy, British, in matters of national defence, ^t, 15, 16, footnote , 2,Z^ footnote, 350. 351. 355. 359. 360- Apollodorus of Damascus, great Roman bridge-builder, 129-30, 131, 344. Appenzell, Canton of, the birthplace of Ulric and Jean Grubenmann, 141.

Aqueducts, Roman, the Pont du Card, 83, 167-75, 3^1 ; at Lyon, 176, 213 ; at

Luynes and Frdjus, 176 ; the Marcian Aqueduct, 189 footnote ; Nero's Aqueduct, 189; the Alexandrine, 190; Anio Vetus, 190; at Minturnae,

190 ; Tarragona, 189 ; Segovia, 183-4, 189, 190, see also the illustration

facing page 184 ; Smyrna, 165 ; number of aqueducts at Rome in the sixth century a.d., \%(^ footnote ; Sextus Julius Frontinus, Superintendent of the Aqueducts at Rome, wrote, in the first century of our Era, a treatise on Roman aqueducts, iSq footnote.

Aquitaine, Duke of, William the Great, his attitude to the collection of tolls on bridges, 240. Arabian Arches, their shapes are of three sorts, the horseshoe, the semicircular, and the pointed. Often they are enriched by a sort of feathering or foliation around the arch, and this ornament is closely akin to Gothic work, which it preceded by a considerable time. The Arabian style, known also as Saracenic and Moorish, is a fanciful composition in which details from Egypt and Greece and Rome are alembicated with " the light fantastic lattice-work of the Persians." To-day we find its graceful influence in the greatest bridges at Isfahan, 213, and also in much Spanish work, 28-9, 285-6, 288. Some writers believe that pointed arches were invented by the Arabs, yet they were built in Egypt during the Fourth Dynasty, 155-6, and also by the Babylonians, 275 footnote. The Saracenic pointed arch was a forerunner of the Gothic pointed style, and it became familiar to the Crusaders, 86-93 ! but we must draw a wide distinction between the pointed arch and the pointed Gothic style. Arabian architects did not achieve an upward flight and rhythm akin to the vertical principle of inspired Gothic ; their buildings preserved the horizontal line which gave and gives character to classical traditions, 152, 153, 336. If, then, the pointed arch in Europe was borrowed from Arabian architects, as many antiquaries believe, 88, it passed through a great transformation in technical sentiment, and became an original inspiration. Aragon, 275. INDEX AND GLOSSARY 375

Arcades cut transversely through the piers of the ruined Roman aqueduct at Lyon, 213, and also in the two greatest bridges at Isfahan, 214, 215, 270. Arcades, Covered, in the best bridges at Isfahan, pierced through the outer walls from one end to the other, 214, 215, 269.

Arc de St. Benezet, in the Bridge of Avignon, 81 ; its elliptical shape had a forerunner in the vault of Chosroes' great hall at Selucia-Ctesiphon, which may have been derived from Babylonian tradition, 2^ there i, footnote ; is even a Roman starting-point for B^nlzet's arch, 196. Arc de Triomphe, Chinese, 315; Roman, 176-7, 183.

ARCHiEOLOGY, PREHISTORIC, why it is tiresome to most people, 119-20.

Archery, Early English, the Conscription of, how its legal statutes were " imperilled by trade rings," 49 ; some Elizabethans wanted to see a revival of the archery statutes, 333.

Arches made by Nature, the Pont d'Arc at Ard^che, 6, 88, 150 ; the Rock

Bridge in Virginia, 6 ; the Durdle Door at Lulworth, 151 ; La Roche

Perc^e at Biarritz, 151 ; La Roche Troude, near Saint Gilles Croix-de-Vie,

151 ; at Icononzo, in New Grenada, 151 ; Lydstep Arch on the coast of

Pembroke, lep footnote ; on the formation of natural arches, 151-2 ; how

these arches were copied by mankind, 6, 153, 154, 155, 156, 157 ; their significance, 152-4. Arches made by Man, those copied or adapted from Nature's models, 6, 153-7; their significance, 152-4; the symbolism of arches, 154; arches in

art are more suggestive than circles, 154-5 ; in some arches the vaults are built with parallel bands of stone, Roman examples, 82, 83, 174, mediaeval Gaulish, example, 81, 82, 83 ; arches made with criss-cross piers of timber, cycloid in 70, 71, in Kashmir, 71, 72, 73, in North Russia, 73 ; arches,

Ammanati's bridge, 222, 316-17 ; elliptical arches, St. Bdn^zet's, 81, in

Chosroes' great hall at Selucia-Ctesiphon, 2";^, footnote ; extra-dossed arches, early Egyptian, Roman and mediaeval, 282-3 > pointed arches, 155-6, semicircular arches, Babylonian, 275 footnote, early European, 86-93 > Babylonian, 275 footnote, in Asia Minor, 160, in Acarnania, 160, among the the Etruscans, 160, in Ancient Rome, 161-4 ; transverse arches cut through piers of bridges, 213, 214, 270. Architects, great need of their influence in to-day's bridge-building, 357, and also in the work of British highway boards, 43. Architecture, Arabian, see "Arabian Arches." building of walls probably Architecture of Birds, 112 ; the use of mud in the copied from birds, 111. Architecture, Greek, 152, 157-9; lovers of Greek architecture are overapt to undervalue the Roman genius, 167-8. Architecture, Roman, see Chapter III. Archstones, or voussoirs, they form the compressed arc of materials called the or three sets, forming either ring ; in some bridges they are laid in two a double or a triple ring, 305 footnote. The earliest archstones were ;

376 A BOOK OF BRIDGES

arranged in horizontal courses, 6, as in the temple of Rameses II at Abydos, 155, in the Porta dell' Arco at Arpino, 156-7, and the Lion Gate there is at Mycenae ; but at Gizeh, in the great pyramid of Menkaura, a variation from this horizontal method, 156. Some Chinese bridges have arches built without keystones, 313-14, the rings being constructed with a few segmental stones from five to ten feet long, 314. The Romans extra-

dossed their archstones, as in their bridge at Narni, 24 ; and this excellent practice was followed often in the Middle Ages, 282-3. The Romans, again, more often than not, bedded their archstones dry, without mortar or cement, as in most of the arches in the Pont du Gard, 175 footnote; but feebler masons have failed to copy with success this Roman method,

notably in the restoration of the vast Roman aqueduct at Segovia, 184 ; and recently Spanish workmen, after rebuilding an arch of the Puente Trajan at Alcdntara, pointed the joints of the whole bridge in order to bring the masterpiece into keeping with their own weakness, 186-7. ^^ ^ ^^^ English bridges the archstones are moulded like church windows and door-

ways ; examples, Crowland, 304-5, and the Abbot's Bridge at Bury St. Edmunds, ya^ footnote. Ardashir, of Persian history, 202. Ardeche, in France, the Pont d'Arc at, a natural arched bridge, 6, 89.

Arguments, concerning the origin of Dartmoor Clapper , Bridges, 100-5 concerning the introduction of pointed arches into French bridges, 84-93; concerning the introduction of ribbed arches into English bridges, 93-100 to excuse the evolution from military bridges into defenceless bridges, 334 to prove that every sort of strife is a phase of war, vii, and section ii. Chapter I, pp. 14-52.

Armada Period, the, Spanish cannon belonging to it used in the Peninsular War, 334. Arpino, in Campania, its Porta dell' Arco, an ancient gate with a pointed arch belonging to the so-called Cyclopean style, 156-7.

Arquebuse, and the slow development of hand-guns, 333. Art Criticism, English, its defects, 168.

Artificial Light and Heat, the first missionaries, 58. Artists, we need their help in bridge-building, 357-8. Ascoli-Piceno, and her bridges, 200, 201.

ASHFORD Bridge, Derbyshire, the stump of its mediaeval cross destroyed by parapet repairs, 230. Asia Minor, early semicircular arches have been discovered there, 160. Askeaton Bridge, its military character illustrated in the " Pacata Hibernia," 260.

Atreus, the Treasury of, at Mycenae, its domed and circular chamber, 158-9.

Augustus, Bridge of, at Rimini, 82, 199, 220.

Augustus C^sar, the bridge at Narni belongs to his time, 23. INDEX AND GLOSSARY 377

AuHSiEN, in Western China, an iron swing bridge is found there, 345-6. AuRELius, Pons, another name for the Janiculine bridge in ancient Rome, 197. Aviation, see " Airships " and "Aeroplanes." Avignon, her famous bridge built by St. B6n^zet. See " B6ndzet."

Babylon, some of her ancient bridges, 127 ; the great bridge built by Semiramis,

273-4 > Babylonian arches, semicircular, pointed, and even elliptical, 275 footnote.

Babylonian Bridges and Arches, 127, 273-4, 275.

Bad Decoration in Bridges, 320-8 ; M. De Dartein, his books and views, 319-20; see also under " Engineers, Modern." Bakewell Bridge, its ribbed arches, 94. Bale, the old bridge at, over the Rhine, 306-7. Ballad of Abingdon Bridge, its value to pontists, 208, 251-2. Banbery, a superintendent of the workmen when Abingdon Bridge was built by charity, 252. Bamboo Bridges in Western China, 348, and in Sumatra, 291. Bamboo Rope, how it has long been made in China, ^a,^ footnote. Band-i-Mizan, the, a famous Dike at Shushter in Persia, 202, 204. Bandits, in mediaeval England, 207, 208. Baracconi, quoting from Sextus Pompeius Festus, proves that in very early times human victims were thrown into the Tiber, 64. Baramula, in Kashmir, its fine bridge with criss-cross piers, 73. Barber, Geoffrey, contributed a thousand marks to the building of Abingdon Bridge, 252.

Barden Bridge, in Wharfedale, its angular pier-shelters for foot-passengers, 2s^ footnote. Baring-Gould, S., on the Devil's Bridge, twelve miles from Aberystwyth,

66-9 ; on sacrifices anciently offered to the Spirits of Evil, 68 ; on Dart-

moor bridges, 103 ; mentions some of the arched entrances to caves on the coast of Pembroke, \sp footnote. Barking, Abbess of, the trustee of Queen Mathilda's endowment of Old Bow Bridge, twelfth century, 98.

Barnard Castle Bridge, a chapel used to grace it, 231 ; see also the colour plate facing page 232. Barons, Lawless, in Mediaeval England, 20"] footnote. Barrow, English traveller in China, his remarks on some Chinese arches, 313-14, and on the bridges of Hang-Cheu, 365-6. Barrows, Long, Prehistoric, 139. Barry, E. M., r.a., protested energetically against the bad taste shown by modern engineers in bridge-building, 77-^- Barthelasse Island, and the Bridge of Avignon, 237. 378 A BOOK OF BRIDGES

Bartolommeo, Ponte S., another name for the Pons Cestius, according- to Palladio, 196. Baslow Bridge, its ribbed arches, 93, and its shelter-places for passengers, 2Cj2i footnote. Bath, William Pulteney's Bridge at, 221. Battle Bridges, see "War Bridges."

vii, its i Battle, Law of, 4 ; relation to roads and bridges, see sections and ii of Chapter I permanent among the lower animals, 17, 18 perhaps it ; ;

may become less troublesome among men, 18, 19 ; its action in the rise

and fall of civilizations, 22, 23 ; its rule in civil life is inferior to Nature's beautiful order in her cellular commonwealths, 19, 25, 40-3, yet sentimentalists believe in the illusion called peace and do infinite harm by their hostility to canting national defence, 33, 34, 35, 351, 360-1 ; see also the last chapter on the evolution of unfortified bridges. Baudouin, the Elector, in 1344, built the Moselle Bridge at Coblentz, 260. Bavaria, bridge over the Main at Wiirzburg, 259-60. Beaucaire, Pont de, a great suspension bridge, 344-5. Beavers, their great intelligence, no; much human work in bridge-building has shown less intelligence than that which we find in the beaver's contests against running water, 131. Becker, his views on the bridges in ancient Rome, 193. Becket, St. Thomas a, the Gothic chapel on Old London Bridge was dedicated to him, 216. Beddoes, Mr. Thomas, traveller and trader in Equatorial Central Africa, his remarks on tree-bridges made by the natives, 123, and on other primitive bridges, 148-9. Bedford Bridge, her old chapel, now destroyed, 231. Beehive Tombs at Mycenae, 158-9. Bees, their intelligence, no. Beffara, a French architect, in 1752 builds a very remarkable bridge near Ardres, in the Pas-de-Calais, 305-6.

Belgium, the Jeanne d'Arc of nations, '^i^ footnote ; her old bastille bridges, 289-91. Belle Croix, the, formerly on the old bridge at Orltians, 246-7. Benedict XIII, expelled from Avignon, 239.

B£Ni;zET, Saint, his bridge at Avignon. Frontispiece; 81, 82, 83, 236-9; parallel bands of stone in the vaults of the arches, 81, 82, 83 ; perhaps B^n6zet had some correspondence with Peter Colechurch, who began Old

London Bridge, 217 ; the line of his bridge made an elbow pointing upstream, 237, 297 ; in a bird's-eye view the design looks like a bridge of boats, 262, 297 ; B^n^zet died before his work was finished, and was buried in the chapel on his bridge, 236 ; see also the footnote on 280. B^ranger, Charles, French publisher, his excellent books on bridges, 318-19. INDEX AND GLOSSARY 379

Bermudez, Cean, quoted by George Edmund Street, 286. Bernini, Giovanni L. (1598-1680), his sculpture for the Ponte Sant' Angelo in

Rome, 195 ; this sculpture is a burden to the bridge rather than a beauty to it, 324. Berwick-on-Tweed, its mediaeval bridge fell many times, 49. Besillis, Sir Peris, helps to build the bridge at Abingdon, 252. BiziERS, its twelfth-century bridge, 92.

Bhutan, India, its primitive timber bridges with defensive gateways, 73, 272-3.

BiDEFORD Bridge, formerly it was graced with a chapel, 231 ; its twenty arches were built in the 14th century with help from indulgences sanctioned by Grandison, Bishop of Exeter, -^oi, footnote. Bishop's Bridge, Norwich, has a double arch ring, 305. Blasphemers were ducked in the Tarn from the Pont des Consuls at Montau- ban, 256. Bludget, an American engineer, takes hints from the brothers Grubenmann, 142. Board of Trade, London, its report on the Tay Bridge Disaster, 340. Boats ought to be added to the remarks on page 58, or to the first section of the second chapter (pp. 109-12), for primitive man got his first boats from Nature. The earliest were floating branches and trees on which men sat

astride, drifting with the current of rivers ; the later were trees hollowed out by decay, which became models for dug-outs. " Between the primitive

dug-out and a modern man-of-war there is, apparently, an impassable gulf ; but yet the two are connected by an unbroken chain of successive improvements all registering greater efficiency in mechanical skill. Each of those intermediate increments constitutes a numbered milestone in the history and development of navigation."— Dr. Robert Munro. Boats, Bridge of, at Cologne, i. It will be remembered that Julius Csesar frequently made use of boat-bridges, and that Xerxes, four hundred and eighty years before the Birth of Christ, made a bridge of boats across the narrowest part of the Hellespont, between the ancient cities of Sestus and Abydus. So the boat-bridge at Cologne, like the wooden pontoon, has an old and fascinating lineage, yet a modern bridge was going to displace it when the present Great War began. " Kultur " cancels history. BoFFiY, Guillermo, architect of the immense nave in Gerona Cathedral, 28. Boisseron, on the little river B^novie, its disfigured Roman bridge, 179. BoKYNS, John, in 1483, bequeathed three and fourpence to a chapel to be built on Rotherham Bridge, 233. Books on Bridges, 318, 319, 320; William Hosking, 317; Emiland Gauthey's "Trait6 de la Construction des Ponts," 127; Colonel Emy's "Traits de I'Art de la Charpenterie, h^t,footnote; Professor Fleemingjenkin's "Bridges," see "Jenkin"; E. Degrand's "Ponts en Ma^onnerie," 88. Booths or Shops on Chinese bridges, 210 footnote; on European bridges, 210. :

38o A BOOK OF BRIDGES

Bordeaux, Pont de, its length and its cost, 356. Boughs, Forked, in primitive bridge-building, 135, 148. Bower Birds, Australian, their architecture is a model to all primitive men, 112. Brackets, below the parapet of the Pont Neuf at Paris, 321. Brackets are ornamental projections from the face of a wall, to support statues and other objects. Some are adorned only with mouldings, while many are carved into angels, or foliage, or heads, or animals. Parker says: "It is not

always easy to distinguish a bracket from a corbel ; in some cases, indeed, one name is as correct as the other." See Brangwyn's drawing of the Pont Neuf facing page 320. Bradford-on-Avon, Wiltshire, the bridge there has a tiny oratory, 231-2, which was profaned after the Reformation, becoming a "lock-up," and

then a powder magazine, 232. The bridge has nine arches ; the two pointed ones uniting the oratory to the bankside have ribbed vaults, and the others are round-headed arches with double rings of voussoirs, 305 footnote. Originally the bridge was a narrow one for packhorses, but it was widened in 1645, O"^ thereabouts. A hospital used to stand at one end of the bridge, and doles of charity for it may have been collected in the little place of prayer. Leland admired this bridge, and noted its nine fair arches of stone, and a fair large parish church standing beneath the bridge on Avon ripe. Brain, the Human, its large size and its infrequent greatness, no, ni, 112,

239-40 ; see also the second chapter. Branch Railway Lines over strategic rivers, they are necessary in national defence now that bridges may be damaged seriously with bombs falling from airships and aeroplanes, 355-6. Brandryth or Brandereth, a mediaeval name for a cofferdam, 253, and footnote.

Brangwyn, Frank, vi, 6, 15, 23, 29, 34, 78, 79, 92, 160, 162, 179, 194, 201, 202, 208, 209, 212, 223, 224, 236, 247, 254, 258, 272, 279, 291, 299, 307, 331 ; see also the Lists of Illustrations. Brecon, its bridge has safety recesses built into the piers from the parapet, 2i^ footnote. Brick Aqueducts, Roman, 189-90.

Brick Bridges, Persian, 265-6, 270 ; European, the Pont des Consuls at Montauban, fourteenth century, 255, and the covered bridge over the Ticino at Pavia, 308. Bridge-building, Roman, 26-30, see also Chapter III ; mediaeval, 26-30, 33-6, " " 85-106, 264, see also Ballad of Abingdon Bridge" ; Chinese, see Marco Polo"; Persian, see "Karedj," " Khaju," and " Ali Verdi Khan"; Primitive, see "America, South," " Beddoes," "Bhutan," " Criss-Cross Piers," "Kashmir," "Kurdistan," and Chapter II. Bridge built with Arches, its anatomy. Professor Fleeming Jenkin says "An arch may be of stone, brick, wood, or metal. The oldest arches are INDEX AND GLOSSARY 381

of stone or brick. They differ from metal and from wooden arches, inasmuch as the compressed arc of materials called the ring is built of a number of separate pieces having little or no cohesion. Each separate stone used in building the ring has received the name of voussoir, or archstone. The lower surface of the ring is called the soffit of the arch. The joints, or bed-joints, are the surfaces separating the voussoirs, and are normal to the soffit. A brick arch is usually built in numerous rings, so that it cannot be conceived as built of voussoirs with plane joints passing straight through the ring. The bed-joints of a brick arch may be considered as stepped and interlocked. This interlocking will affect the stability of the arch only in those cases where one voussoir tends to slip along its neighbour. The ring springs from a course of stones in the abutments, called quoins. The plane of demarcation between the ring and the abutment is called the springing of the arch. The crown of an arch is the summit of the ring. The voussoirs at the crown are called keystones. The haunches of an arch are the parts midway between the springing and the crown. The upper surface of the ring is sometimes improperly called the extrados, and the lower surface is more properly called the intrados. These terms, when properly employed, have reference to a mathematical theory of the arch little used by engineers. The walls which rest upon the ring along the arch, and rise either to the parapet or to the roadway, are called spandrils. There are necessarily two outer spandrils forming the

faces of a bridge ; there may be one or more inner spandrils. The backing

of an arch is the masonry above the haunches of the ring ; it is carried back between the spandrils to the pier or to the abutment. If the backing is not carried up to the roadway, as is seldom the case, the rough material employed between the backing and the roadway is called the filling. The parapet rests on the outer spandrils." Bridge Chapels and Oratories, 82, 208, 209, 216-17, 218-19, 225-39, 241-6, 256. Bridge Crosses and Crucifixes, 96, 230, 246-7. Bridge Decoration, 193-4, 195-6, 201, 215, 227, 286, 304, 305, 311, 312, 316, 318-28. Bridge Friars, or Pontist Brothers, the Freres Pontifes, 93, 236, 296, and fi)otnote.

Bridgenorth, formerly the bridge there had a chapel, 231 ; it has shelter-places for foot-passengers, ze^S footnote. Bridges with Wide Arched Spans, 309-10. Bridge-Wreckers, 352, 355. It is worth noting that the King of the Belgians in the present Great War has used a cyclist corps of bridge-wreckers, whose work is described in the Daily Mail, December 14, 1914, page 4. "The cyclists led the way. The explosives followed in a car. The charge was fixed to the girders under the bridges, an electric wire affixed, you touched a button and the near span of the bridge was in a moment no more than

a gap. Their greatest achievement . . . was a railway bridge between Courtrai and Audenarde. It needed two charges." The cyclists regarded their work as " fun," because no bridge was at all difficult to destroy. 382 A BOOK OF BRIDGES

Brig of Ayr, 94. Brig o' Doon, 45, 94. Bristol Bridge, Old, a copy of Old London Bridge, had a chapel, 231.

Britannia Bridge over the Menai Straits, its great defects, 77-8 ; its length and its cost, 357.

British and French Bridges contrasted, 256-8, 281, 294-5 > ^^^ French genius in architecture often superior to the British, 294-5. British Apathy, see "Apathy, British."

Brives-Charensac, on the Loire, its ruined Roman bridge, 179, 180 ; the arch has a double ring of voussoirs, npe^ footnote.

Period, Men of the, 21 ; approximate date of this period, 21 pastoral Bronze ;

life of the Bronze Age on Dartmoor, 100, loi ; this life rendered bridges necessary, loi, 103. Brooklyn Bridge, at New York, described and criticised, 354. " Brown Bess," the Old Musket, displaced for a better weapon in 1857, 334. Buchan, Dr. William, one of Lister's little-known forerunners, c^S footnote. " Buckler, J. C. and C, their Remarks on Wayside Chapels," 22S footnote. Budapest, the chains of its great suspension bridge pass through, the towers instead oi over the summits, 346. Bujuco Bridges in South America, described by the Spanish Admiral Don Antonio de Ulloa, 146, 147. Bulleid, a., a writer on the Glastonbury Lake Village, it,^ footnote. Bunsen, on the bridges of ancient Rome, 193, 197. BuRDON, Rowland, in 1796, designed Wearmouth Bridge, 349. BuRNSALL Bridge in Wharfedale, its shelter-places for foot-passengers, 258 footnote. Bush-Rope, in Equatorial Central Africa, its use in bridge-building, 123.

Cable Bridges of Bamboo in China, 145 ; of ox-hide thongs in Peru, 146, and also in the Andes, 147. C^sar and the British Tribes, 22 ; he speaks of the Gaulish bridges, 70, 71. Cahors, the Pont Valentre at, a fortified bridge of the thirteenth century, 27, 92, 263-4, 282-5. See also the illustrations facing pages 16 and 264. There was another great old bridge at Cahors, but it perished in a storm of local party politics, 44. Caille, Pont de la, famous modern suspension bridge, 344. Calahorra, the big tower guarding an entrance to the bridge at C6rdova, 188. Canada, devoted to very vulnerable bridges, 354. Canal Bridge in Venice, 329. Canals, their construction has been a phase of war claiming a great many lives, 17, &nd footnote. INDEX AND GLOSSARY 383

Cane Vines used in Africa in the making of bush-rope, 123. CAngas de Onis, the gabled bridge at, 27.

Canina, his attempt to reconstruct the Pons Sublicius differs from Colonel Emy's, 140.

Cannon, the slow improvement in their manufacture, 333. Cannon Street Railway Bridge, the colour plate facing p. 48. Canoes, they often take the place of bridges in Africa, 123. Canterbury, the Archbishop of, in 1318, owned the land adjoining Old Shoreham Bridge, 41. His name was Walter Reynolds. CapAC YuPANQUi, the fifth Ynca, and his bridge of rushes, 146-7. Cappucina, Ponte di Porta, a Roman bridge at Ascoli-Piceno, 201. Caracalla, 129.

Carcassonne, Old Bridge at, dating from the 12th century, 92 ; see also the plate facing page 104.

Carmagnola destroyed the great old bridge spanning the Adda at Trezzo, 309. Cartaro, Ponte, a mediaeval bridge at Ascoli-Piceno, 201. Castro Gonzalo, the Old Bridge of, blown up by Moore's rearguard, 334-5. Catherine, St., the chapel on the Pont des Consuls at Montauban was dedicated to her, 256.

Catterick Bridge had a chapel, 231 ; the Contract Deed for the building of this bridge, 253. Cave-Dwellings, the earliest were stolen from cave-lions and cave-bears, III. Caves, with arched entrances, \ep footnote.

Cells, Communities of, in the human body ; the beautiful harmony of their competitive life, how it differs from the social rule in the civilizations bungled by mankind, 18, 19, 25. Centres or Centring, the curved scaffolding upon which arches are built. The voussoirs rest on the centres while the ring is in process of being constructed. When the centres are not rigid enough, arches sink a good deal while the masons are at work and after the scaffolding is carefully struck. In Perronet's bridge at Neuilly-sur-Seine, for example, the sinking amounted centre in its to twenty-three inches, 338 ; thirteen inches while the was place, and ten inches after the centre was removed. On the other hand, when the centres of Waterloo Bridge were taken down, no arch sank more than i^ inches. There is reason to believe that modern centres are more complicated than were the mediaeval. See page 264 and page 286. Cerceau, du, Androuet, French architect and builder of the fortified bridge at facing page Chdtellerault, 331-4 ; see also the colour plate 332. Cestius, Pons, at Rome, 196-7. Chalon-sur-Saone, the quaint citizenship of its mediaeval bridge, 224. Chamas, Saint, in France, and its famous Roman bridge, 176-7. 384 A BOOK OF BRIDGES

Chambers or Rooms built in bridges, Paris examples, 225, a Persian example, 267-8. Chapel of St. Catherine on the Pont des Consuls at Montauban, 256. Chapel of St. Nicholas on the Pont St. B^n^zet at Avignon, 237. Chapel of St. Thomas k Becket on Old London Bridge, 216-17. CkAPELs ON Bridges, 82, 208, 209, 216-17, 218-ig, 225-39, 241-6, 256. Character, the Drama of, among the progenitors of Man, 115-19. Character of a Great Bridge, its principal traits, 15-16, 256-7, 320-8. Charing Cross, the Railway Viaduct from, disgraces the Thames, 256. Charity, a Builder of Bridges in the Middle Ages, 251-2. Charlemagne, his friendly attitude to roads and bridges, 26, 86-7. Charles the Fifth, Emperor, in 1521, armed his troops with the musket, 333. Charles the Second, routed at Worcester, fled by Old Pershore Bridge into the Bredon Hills, 355.

Chateau-Thierry, Bridge at, built by Perronet, j,t,2> footnote. Chatellerault, Pont Henri IV at, built by Androuet du Cerceau, perhaps

the latest fortified bridge in Europe, 331-2 ; see also the colour plate facing page 332. Chatsworth, a fine Bridge at, is troubled by pretence in decoration, 322. Chaucer, and Old Bow Bridge, 98, 99. Cheese and Chickens, eaten by mediasval workmen who allowed their bridge at Abingdon to be built by charity, 2^^^ footnote. Chenonceaux, the noble Castle of, erected on bridges, 300. 2s,S Chester, the Old Dee Bridge, footnote, and 2fih footnote. China, Staircase Bridge in, 248. Chinese Bridges, 126, 145, 210, 211, 247-9, 291, 310-16, 344-8. Chipiez, his fine restoration of the doorway into the Treasury of Atreus, 158. Cho-Gan, the Bridge of, in China, 313. Chollerford, near Hexham, its ruins of a Roman bridge, 173. Church, MEDiiEVAL, protected bridges, 40, 51, 96, 207; see also "Bridge Chapels and Oratories," " Bridge Crosses and Crucifixes," and " Indulgences." Church, Mediaeval, what England owed to her, 233. Circles and Curves and Angles, their varied symbolism, 153-5. Cistercians, they introduced ribbed vaulting into the English churches, 94-5, so why not into bridges also as a development therefrom? 96. Their bridges at Fountains Abbey, 96. Citizenship, English, in the Middle Ages, was often slack and dishonest,

49-51 ; the citizenship of mediaeval bridges, which were connected in a self-evident manner with all the principal motive-powers of social life, 208, 209, 210 et seq. INDEX AND GLOSSARY 385

Civilizations, their rival ideals tested and proved on stricken fields, vii ; the five phases of their evolution, 22-3 ; their social rule has differed deplorably from Nature's social order in her communities of living competitive cells, 18, 19. 25-

Clain, River, and its Bridge, see the illustration facing page 56. Clamps, Iron, said to have been used in the bridge at Babylon, 274 ; in Roman bridges, 172-3 ; Perronet used them sometimes, 283.

Clapper Bridges, Dartmoor, 100-4 ; rather similar bridges in Lancashire, 60-4; in Spain at Fuentes de Ofioro, 104-5 > i" ancient Egypt, 126, and

Babylon, 127 ; and in China, 126-7.

Claptrap, the drum of controversy, 89; British claptrap and its dangers, ZZetseq., 360. Classic and Gothic, their rivalry, 336-7. Clifton Suspension Bridge, 346. Cluny, Abbey of, commissioned the Pontist Brothers to build the Pont St. Esprit, 297. Coalbrookdale Bridge, the earliest European bridge of cast iron, 348-9. CoBHAM, Sir John, in 1387, helped to build Rochester Bridge, 244. Coblentz, the Moselle Bridge, dating from 1344, 260.

CocLES, Horatius, and the Pons Sublicius, 64, 355.

2c^2) Cofferdams, 251, 253 ; their structure described, footnote. Colechurch, Peter, priest and chaplain, the first architect of Old London Bridge, 217, 2S0 footnote. CoLNE, near, a Roman bridge, 162.

Cologne, Bridge of Boats at, i ; an absurd railway bridge there, 323. CoMYN, John, his fight on the Ouse Bridge at York, 241. Conservatism, when carried to excess, turns most people into other people, see section iii. Chapter I, 53-84.

Constantine, Algeria, Pont Sidi Rached at, 53.

CoNSTANTiNE THE Great, the Pons Sublicius was still extant in his time, 140. Constantino, the Roman Bridge of, in Spain, 28^ footnote, 335. Constantinople, a bridge there in the fourth century a.d. was named after the Pons Sublicius, 140. Consuls, Pont des, at Montauban, 254-7, and the illustration facing page 256.

Controversies, section iv. Chapter I, 85-106.

Conventions among men are often inferior to the instincts of animals, 76 ; Acts

of Parliament might force them to progress, 76-7 ; see also section iii, Chapter I, 53-84. Conway Castle, and its bad Suspension Bridge, 323. 2 c 386 A BOOK OF BRIDGES

Cooke, John, in 1379, bequeathed twenty marks to the fortified bridge at Warkworth, 10.

CORDOVA, its famous bridge, 188, and the illustration. Corsica, a very curious military bridge, 238. CouRTRAi, THE PoNT DE Broel AT, a fortified bridge, 290, ^.nA footnote. Covered Bridges, 195, 211, 291-2, 308, 358. Cox, the Rev. Dr., 232. Craigellachie, Telford's Bridge at, 349. Crawford, Francis M., 64. Creeping Plants used in the Making of Primitive Bridges, 123.

iii, Chapter I, Creeping Progress of Mankind, iio ; see also section 53-84. Criss-cross Piers, 70, 71, 72, 73, 135. Criticism of Art, English, its pretty defects, 167-8. Croc, the Rook, King of the Alemans, may have regarded the Pont du Card as a work of the devil, 170. Crockett, S. R., his book on Spain and his remarks on bridges, 180-1.

Crofton, H. T. , a student of bridges, vi, z\so footnote. Cromford Bridge had a chapel, 231.

Cromlechs, 100 ; the clapper bridges over Dartmoor rivers are flat cromlechs " built over water, 104 ; see also Iberians." Crosses and Crucifixes on Bridges, 96, 230, 246-7. Crossing, William, his remarks on Dartmoor bridges, 102-3. Crowland Bridge, 302-5. Crusades, their presumed effect on bridge-building, 88 et seq. CuRZON, Lord, his excellent remarks on Persian bridges, 214, 268-70.

iii. I, Custom sends reason to sleep, 16, 39, 40 ; see also section Chapter 53-84. Cutwaters, 262, 316. The French words for cutwaters, avant-bec and arriire- bec, would be very useful to us if we translated them as " forebeak " and "aftbeak." British pontists need a good many technical terms. Cycloid Arches, in Ammanati's great bridge over the Arno, 316.

Cyclopean Style, so called, in the Porta dell' Arco at Arpino, 157.

Dalquie, his translation of Kircher's book on China, 314, ^/^^ footnote. Dam, Arcaded, Old London Bridge was an, 220. Danby, John, in 1444, left six and eightpence to Warleby Bridge, 10. Darby, Abraham, in 1779, bridged the Severn with an arch of cast-iron, the earliest in Europe, 348-9. Dartein, F. de, French architect and engineer, his books on bridges, 319, 320. Dartmoor, and its Clapper Bridges, 60, 100-4. Darwin, references to his teaching, 32, 69, 70, 106, 109, 111-12, 118. INDEX AND GLOSSARY 387

Dates in History, the Bronze Age, 21, Iron Age, 21, Palseolithic Art, 62 ; the inestimable value of dates to students, 119; approximate date of the Pliocene tools unearthed on the East Anglian coast, 120; approximate date for the Neolithic Period, ; of 136 age the Pont du Gard, 174 ; of the bridge at Saint Chamas, 177; dates of some Lancashire bridges, 250 footnote.

Death, Nature's attitude to, 3, 4, 36, 37. Decoration of Bridges, 193-4, 19S-6, 201, 215, 227, 286, 304, 305, 311, 312, 316, 318-28. Dee Bridge, Chester, the Jolly Miller's Bridge, z^^ footnote, yai, footnote.

Defence, National, its in relation to Bridges, vii, 14-16, ?7i-6i ; see also "War-Bridges." Bridges, Defenceless their Evolution, 331-61 ; their frequent make-believe of defence shown in trumpery imitations of mediaeval towers and machicolations, 275, 323, 349. " Degrand, E., his book Ponts en Magonnerie," 88 ; on the bridge at Espalion, Bridge, 88-9 ; on Albi 89, 90, 91 ; refers to primitive arches in Mexico, 157 footnote; on the Treasury of Atreus at Mycenae, i^^ footnote ; other references to his views, \<^ footnote, 212 footnote, and on Chinese bridges, 314-15- Derby, a chapelled bridge is extant there, 258.

Derwent Packhorse Bridge, Derbyshire, on its parapet, a few years ago, the stump of a mediaeval cross remained, 230-1.

Descent of Man, in its relation to nature-made bridges, 3, 4, and Chapter II. Desecration of Old Bridges, 225 et seq., 230-6; see also "Highway Boards." Devil's Bridges, 66, 67, 70, 170, 184, 296. Many other bridges have been attributed to the devil. In plate 58 of the treatise by Hann anfl Hosking,

you will find the Devil's Bridge over the Serchio near Lucca ; there is also a very interesting account of it, p. cxxxv. It is a gabled bridge with one big arch and four smaller ones. The span of the big arch is 120 feet, and its height above low-water level is more than 60 feet. The roadway is very narrow, being only 9 feet wide, and it turns abruptly at the wings, as if to close the entrances against wheeled traffic. The quoins of the smaller arches and all the voussoirs of the wide arch are of dressed stone. Every other part of the bridge is rubble masonry bound together with most excellent mortar. The courses of stone in the wide arch vary from 8 inches to 21 inches deep, but only a few have the latter depth. Yet this slight bridge, which is nothing more than a broad arcaded wall, has withstood many centuries of floods. On October 2nd, 1836, for example, a head of water more than 30 feet deep swept roaring through the five round

arches and against the four piers at the rate of 8 miles an hour ; yet no harm was done. If this bridge was built about the year 1000 a.d., as Hann and Hosking say, it is somewhat older than the controversial date of Albi Bridge. — ;

388 A BOOK OF BRIDGES

Devorgilla's Bridge at Dumfries, 94. DiABLE, Pont du, St. Gothard Pass, 67. DiARBEKR, on the Tigris, a Roman bridge at, 202. Dion Cassius, on Trajan's bridge over the Danube, built before a.d. 106 by Apollodorus of Damascus, 129, 130. Dismantling Old London Bridge, 219, 220. Diverting the Thames from his bed when the old bridge was built, 253, 254. Dogs, offered as sacrifices to the evil spirits of rivers, 69. Don Antonio de Ulloa (1716-95), on the tree-bridges of South America, 135

on a Peruvian suspension bridge called the Tarabita, 146 ; on Capac Yupanqui's bridge of rushes, 146-7; on large bujuco bridges, 147.

Doncaster Bridge had a chapel on it, 231. Double and Triple Rings of Voussoirs, jp^ footnote. Dragon, its use in the decorative art of Chinese bridges, 126. Drawbridge, one arch of mediaeval bridges was often a drawbridge, 260. Droitwich, and its very curious chapelled bridge, now destroyed, 231.

Dryopithecus, II 3-1 4. Dunstan, Saint, Archbishop of Canterbury, b. 924 d. 988, from his time the Mediaeval Church regarded the building and upkeep of bridges as a work of pious charity, 207. Durdle Door, on the coast at Lulworth, a natural archway, 151. Durham Bridges, 96, 97, 205, 231. Dutch, the, of the seventeenth century wished to bury a living child under the foundations of a dam, 69.

Eads, Captain James B., engineer of the Illinois and St. Louis Bridge, 352-3. Eagle-Beaked Tools of the Pliocene Period, 119-22. Eamont Bridge, 94, jp^ footnote. Earliest London Bridge, a timber structure destroyed by fire in 1136, 220, and footnote. Earthquake at Ascoli in 1878, 201.

Earthquakes and Volcanoes, the first armourers of the Stone Age, 1 10 ; they made some slab-bridges, 123-4; earthquakes in their relation to natural arches, 152, and to bridges of stepping-stones, 114. Ecclesiastical Workmanship in a few English bridges, 303, 305J; see also "Abbot's Bridge, Bury St. Edmunds."

Edward I came to the relief of Old London Bridge, 50. Egotism, or the Creed of Self, a motive-power behind the strife that bridges and roads circulate, 19 et seq., 22-6, 39-52. Egyptian Bridges, 126, 155, 166.

Elephants, in Decorative Sculpture, on Chinese bridges, 2)^2 footnote. INDEX AND GLOSSARY 389

Elizabeth, Queen, 332. Elliptical Arches, in Babylonian work, z-je, footnote; in ancient Mexico, 157

footnote; in St. B6n6zet's great bridge, 81 ; in the vault of Chosroes' great hall at Selucia-Ctesiphon, 275, and to some extent in the Pons Fabricius at Rome, 196. We know not whether B6n6zet was acquainted with the Pons Fabricius, or with the great hall at Selucia-Ctesiphon, two forerunners of his elliptical arch. At Florence, in every arch of the Triniti, Ammanati achieved a cycloid rather than an ellipse, 316. Emigration, its influence on old types of society, 275.

Emy, Colonel, a writer on timber bridges, 140, 10,1 footnote.

ENCYCLOPiEDiA Britannica, On the High Level Bridge at Newcastle, 80 ; on

Framwellgate Bridge at Durham, 96-7 ; on the Porta dell' Arco at Arpino,

156 ; on the Treasury of Atreus at Mycenae, 158 ; on Roman aqueducts and

bridges, 167 ; on the PuM-Kaisar at Shushter, 202-4 ; on the Ouse Bridge at York, 20,^, footnote ; on New London Bridge, 257; on the Tay Bridge Disaster, 339, 341. Engineers, Modern, their scorn for national defence, 15, 77-8, 79 et seq., 144 footnote, 221, 258, 29s, 320, 323, 325, 339, 340, 346, 349. bridges, English Bridges, their inferiority, 9, 44 ; contrasted with French

281-2, 294-5 ; desecration of old English bridges, 225 et seq., 230-6. Erasmus, 52, 236. Ernulph, Bishop, and Rochester Bridge, 243. EspAGNE, Pont d', famous modern bridge, beyond Cauterets, 278.

ESPALION, THE BRIDGE AT, the controversy concerning it, 84, 85, 87, 88, 92, 93 ; see also the colour plate facing page 88. Etruscan Round Arches, 160-1. EuDES, Count of Chartres, built an early communal bridge, 240. " EuPHUES and HIS England," 220, 221. Evans, Sir John, on the date of the Bronze Period, 21. Eve of Evolution, ii^ et seq. Evolution, in its relation to the strife that bridges and roads circulate, i, 32,

39 ; see also Chapter IL Evolution of Defenceless Bridges, see Chapter V. Exceptional Bridges, 302, 305-6, 307, 308-10, 316. Extra-dossed Arches, Roman and Mediaeval, 282-3.

Fabricius, Pons, at Rome, 195, 196. Fact differs from Truth, 10, 11. Feats of Engineering, 323, 327, 341, 356. Fernworthy Bridge, Dartmoor, 60. Finance, as a phase of permanent war, 35, 36, 361. " Finds " in Research, 6. :

390 A BOOK OF BRIDGES

Fire, its discovery, 58. Firearms, 332-3. Fires on Old London Bridge, 218-19.

Flambard, Bishop, before the year 11 28, is said to have built Framwellgate Bridge at Durham, using ribbed arches. If so, then the ribbed arches in this bridge are about as old as those of the Font de Vernay at Airvault see the illustration facing page 96.

Flaminian Way and the Pons Milvius, 197, and the bridge at Narni, 23. Flavien, Pont, a Roman bridge with two triumphal arches at Saint-Chamas, 176-7. Flemish Towns and their defensive bridges, 289-91. Flint Tools and Weapons prove the terrible slowness of human progress, 57 ; the earliest bridges of handicraft considered in their relation to the earliest hand-made tools and weapons, 56-7, 109, no, 119, 120, 121, 122.

Flodden Field and Twizel Bridge, 94, 355. Flood-water Bays cut through the piers of bridges, 284, as in the great

military Roman bridge at M6rida, 18 1-2 ; the Pons Fabricius another

Roman example, 196 ; later specimens, the Three-arched Bridge at Venice, colour plate facing page 224, the Pont des Consuls at Montauban, colour plate facing page 256, and the Pont St. Esprit over the Rhone, 293. Florence, the Ponte Vecchio, 211, 222; the Ponte della Trinitk, Ammanati's masterpiece, 316. Fo-Cheu, Pont de, a Chinese bridge described by Gauthey, 314-15. Footpaths, the earliest were made by quadrupeds, 3 ; human footpaths, their number, and it what has cost to make them, 17 ; they belong not to the illusion called peace but to the reality named strife, 17. Footways over Medieval Bridges, usually they were narrow, very often they were steep, and sometimes, as in the Pont St. Esprit and the Pont St. B^n^zet, they formed an elbow with the angle pointing up-stream. The Coa Bridge in Portugal, near Almeida, the scene of Crawfurd's action in the Penirisular is War, also angular on plan ; but its elbow points down-stream, and its line seems to have been dictated by the position of the rocks on which the piers are built. For other bridges of this angular sort see page 238. Narrow footways over bridges suggested the safety recesses for foot-passengers, which modern engineers have copied in many of their wide bridges, 258. Steep footways are dealt with under "Gabled Bridges," and in Appendices I and II.

Footways over Roman Bridges, 82, 183, 199, 367-8. Fords, 207-8, 250-1.

Forests, in their relation to Roman bridges, 139, to English bridges, 207, 208. Forth Bridge, 336, 344, 350-1. Add to the text the fact that in one of our naval manoeuvres ' " the Forth Bridge was ' destroyed by the small attacking fleet. INDEX AND GLOSSARY 391

Fortified Towers and Gateways on Bridges, Roman, at M^rida, 182, at Alcantarilla, 367, at Saint-Chamas, 176-7; mediaeval, 254-5, 261, 276-301. See also the Lists of Illustrations. Nearly all the old attributes of defensive bridge-building have been copied by modern engineers in their defenceless bridges—an absurd affectation of learned research introduced by Telford in his cast-iron bridge at Craigellachie, 349. Even dummy machicolations have been used on make-believe towers guarding industrial bridges from the fresh air, 275. Every civilized country has bridges of this foolish sort. Surely medals ought to be granted to fools, and their public display ought

to be enforced by law ; then engineers and others would become ashamed of their bad public work. Founding Piers, 99, 197, 251-2, 341-2. See also "Cofferdams," 2^t, footnote. Fountains Abbey, Yorkshire, Bridges at, 96, 305. Framwellgate Bridge, Durham, 96-7.

France, her administration of roads and bridges, 43, 44, 356 ; rich in remains

of Roman bridges and aqueducts, 168-75, 176-81 ; her bridges are superior to the British examples, 9, 256-8, 294-5. Francis Stone, his book of " Norfolk Bridges," 135. Fraser, G. M., on Scotch bridges, 94.

Freakish Bridges, over the Tavignano in Corsica, 238 ; at Laroque, 300 ; at Bale, 306. Frejus, Remains of a Roman Aqueduct at, 176. French and English Bridges contrasted, 256, 281, 294-5. French Angular Bridges, 237-8, 297. French Genius, often more masculine than the English genius, 294-5.

French Mill Bridges, 223-4 ; see also the colour plate facing page 352. Freres Pontifes, or Pontist Brothers, 296, and footnote. St. B^n^zet was one of the leaders of this order. It is worth noting that some lay brotherhoods in England, animated by the religious spirit, repaired roads and bridges, like the Gild of the Holy Cross in Birmingham, which was founded under Richard the Second. There were similar gilds at Rochester and Bristol and Ludlow, etc. For information on " English Gilds," see Toulmin Smith. Froggall Bridge, its angular recesses for the safety of foot-passengers, 258 footnote. Fuentes de OiSoRO, its slab-bridges akin to our Dartmoor " Clappers," 104-5.

Gabled Bridges, 27, 28, sl^A footnote ; Chinese, 248, 312, 365-6. Gabriel, a French engineer, tried to revive the Roman and mediaeval use of

abutment piers, j,jig footnote. Gaddi, Taddeo, the reputed designer of the Ponte Vecchio at Florence, 222. Galleries, Covered, in Persian Bridges, 314, 215, 270. gaol, also Gaol, the chapel on the bridge at Bradford-on-Avon became a 232 ; at east side of the Ouse the one on Bedford Bridge, 231 ; a gaol stood the Bridge at York, 243, AnA footnote. 392 A BOOK OF BRIDGES

Gard, Pont du, the famous Roman aqueduct, 83, 167-75, 321. Gardens, Some, on Old London Bridge, 219. Garibaldi, when he marched to Rome the Ponte Salaro was blown up, 192. Garstang Bridge, a steep Lancashire bridge built in 1490, zip footnote.

Gatehouse, on the defensive bridge at Sospel, 276 ; on the thirteenth- century bridge at Narni, 277. Gateways, Defensive, 208, 315. also the Lists of Gateway Towers, 97, 272, 278, 280, 286, 289, 323 ; see Illustrations. Gaulish Bridges, 70, 71. Gauthey, Emiland, historian of bridges, 126-7, 19I1 '97. ^99. 3i4> 322- Gebel Barrel, two Pyramids at, have arched porticoes built with voussoirs, 160.

Genius, the motive-power of progress, 56, 59 ; her work usually weakened by

the opposition of custom and convention, 59 ; she is a single creative agent with a double sex, 58 ; ordinary men have been of but little worth until

genius has taken control of them, 239 ; her warfare against the stupidity of mankind, no et seq. ; see also " Mother-Ideas."

Genius, the English, is often inferior to the French genius in architecture, 294-5- Genius, the Roman, 167-204.

Germany, some of her old bridges, 259, 260 ; her creed of aggressive war, 33 footnote, 350, 359, 360, 361. Gerona, Famous Gabled Bridge at, 28, 29. Ghent, the Rabot at, a fortified bridge and lock, 289, 290, 291. GiGNAC, Pont de, famous bridge of the i8th century, 310.

Gipsy's Caravan, how it stuck fast under the low tower at the entrance of Warkworth Bridge, 261, 262.

Girders, there are three types or classes of bridge : the girder, the arched,

and the suspended. Girders may be of various materials ; wrought iron, cast iron, and wood are chiefly used. Professor Fleeming Jenkin describes with apt brevity the essential difference between the three classes of bridge. " In all forms of the suspension bridge the supporting structure is extended

by the stress due to the load ; in all forms of the arch the supporting structure (i.e. the ring of voussoirs) is compressed by the stress due to the

load ; and in all forms of the beam or girder the material is partly extended and partly compressed by the flexure which it undergoes as it bends under the load. Thus when a beam of wood carrying a load bends, the upper side of the beam is thereby shortened and the fibres compressed, while the lower side of the beam is lengthened arid the fibres extended." So, too, in a girder of metal. In some bridges, as in the High Level Bridge at Newcastle, the girder principle is united to bowstring arches of metal, but a true girder is less expensive and lighter, 80. INDEX AND GLOSSARY 393

GiZEH, AT, in the Great Pyramid of Menkaura, there is a very early pointed arch, 155-6.

Glaciers, in their relation to rock-basins and rock-bridges, 152. Glanville, Gilbert de, Bishop of Rochester, 1185-1215, built a small chapel at the Strood end of Rochester Bridge, 245. Glastonbury, its lake-village a good example of prehistoric bridge-building, 21, 137 et seq. Gothic Architecture, her genius described, 152-3. Grandison, Bishop of Exeter, granted indulgences to those who helped in the building of Bideford Bridge, Devon, ^05/ooinoie. See also " Indulgences." Gratianus, Pons, another name for the Pons Cestius, 196. Gray, Walter de. Archbishop of York, between 1215 and 1256, rebuilt the Ouse Bridge, preserving some portions of the Norman Chapel, 242.

Hadrian, destroyed Trajan's Bridge over the Danube, 129, and built the Pons ^lius at Rome, 194. Hall, Lady Jane, in 1566, contributed a hundred pounds to repair the Ouse Bridge at York, 242. Hamburg Merchants, the York Society of, after the Reformation, used the chapel on the Ouse Bridge as an exchange, 242. Hand-guns, 333.

Handicraft, the first public school, 118 ; has never had a standard of uniform II. merit, 121 ; its indebtedness to Nature's models, 3, 4, 6, and Chapter Hand-made Weapons preceded hand-made bridges, probably, no. Harold's Bridge at Waltham Abbey, 162. Haunches of a Bridge, zds^ footnote.

Henri IV, Pont, at Chitellerault, 331-2 ; see also the illustration facing page 332. Henry III, of England, and his wife, rob Old London Bridge of her revenues, 49-51- Henry V, of England, in the fourth year of his reign Abingdon Bridge was built, 251. Henry VIII, during and after his reign bridge chapels were desecrated, 225-6, 230-3. Heralds of Man, 113 ei seq. Herodotus, on the canal begun by Necho II, i^ footnote ; mentions the bridge at Babylon over the Euphrates, 274. Hexham, Smeaton's Bridge at, 339. High Bridge, Lincoln, 221-2. Higherford Bridge, near Colne, attributed to the Romans, 2^5 footnote. High Level Bridge at Newcastle, a "scientific" adventure with an amusing history, 79-80. 394 A BOOK OF BRIDGES

Highway Boarus, their inefficiency in England, 43, 230. Hindrances to Bridge-building, 250-1, 254-5, 264. HoEN-HO, THE River, and the bridge at Pulisangan, 310-13. HooGESLUis, THE, at Amsterdam, a strumpet of a bridge, 323. Horace mentions the Pons Fabricius as attractive to suicides, 195-6. HosKiNG, writer on bridges, ii^2/ooinoie, 309, 317, 325-6. Housed Bridges, 208, 213-15, 216-24, 225. HouTUM-ScHiNDLER, SiR A., On the Pul-i-Kaisar at Shushter in Persia, 202-4. Howell's " Londinopolis," 216-17. Human Beings offered as sacrifices to rivers, 64, 65 ei seq. Human Gunpowder, 23, 352. Human Initiative, nothing else in Nature is less uncommon, 123. Humboldt used the pendulous bridges in Peru, 148.

Iberians, their stonecraft, 100, 102, 104, their cult of ancestors, 104 ; the world- wide influence of their genius, 125 et seq. IcoNONZO, Rock-Bridges of, 151.

Iguanodon, asleep on a Nature-made bridge, 3. Illinois and St. Louis Bridge, 352-3. Imitation in societies, among men 55 ; stimulated by Nature-made bridges, 55 ; its dead routine, no; see Chapter II. Indulgences granted by the mediaaval Church to aid the upkeep of roads and bridges, 40, JP^ footnote. Industrial Bridges, 46.

Industrialism, To-day's, is a very complex phase of war, 35, 36, 46, 48, 333, 352. Industrial Warfare, 33, 34, 35, 36, 46, 48, 333, 352. Inferiority of Old English Bridges, 9, 44, 256-8, 281, 294-5. Inigo Jones, his bridge at Llanrwst, 282, and footnote.

Invasions of England, 20 ; the influence of invasions in the rise and fall of nations, 22. Iremonger, Richard Fannande, writer of the Ballad of Abingdon Bridge, 251. Irish Bridges, 45. Iron Age, its approximate date in England, 21. Iron Bars in Chinese bridges, 314. Iron Bridges, Chinese, 344-5 ; European, 144 footnote^ 348 et seq. ; American, 352 et seq. Iron Cramps used in bridges, Roman, 172-3 ; Babylonian, 274-5 ! modern, 283. Hosking has many good remarks on the subject of cramps and joggles. He " says (p. 208) : It is very desirable that all the archstones of a large and flat arch should be dowel-joggled in the beds ; but as the usual dowel-joggle INDEX AND GLOSSARY 395

cannot be introduced with the key-course, plugs of proportionate size must be used instead, and the stones may, besides, be cramped together. In arches of small size, or in large ones of quick sweep, joggling may not be

so desirable as in those of large size and flat sweep ; though it is to be understood that in any case both joggles and cramps should be considered as surplusage, and as precautions merely, to counteract the effect of any imperfections in the work from want of fulness in any of the stones in an arch, or otherwise. In building London Bridge iron bars were let into the back ends or tails of the archstones, and run with lead as cramps or transverse ties in several courses, and they do not appear to have produced any injurious effect, though it may be questioned how far they are of any use. They ought not to be of any use." Viollet-Ie-Duc went further than

this ; he regarded iron cramps in a stone bridge as likely to be injurious. IsEMBERT, the French bridge-builder who undertook the finishing of London Bridge after the death of Peter Colechurch, 218.

Isfahan, Persia, the Bridges of, 44, 187, 212, 213, 214, 215, 268-70. " Ithe," suggested pronoun for any bridge which is not masculine enough to be called "he," nor neutral enough to be described as "it," 294. "Itshe," suggested pronoun for any bridge which is not feminine enough to be called "she," nor neutral enough to be described as "it." Criticism of art would be aided greatly by these pronouns. For instance, our poets of to-day give us a great deal of inspiration that belongs to the "itshe" class, 294.

Jackson, O. M., the Rev., on Chinese bridges, 126-7, MS. 248, S^S) 347- Janiculine Bridge, Rome, 197. Jebb's " By Desert Ways to Baghdad," 202. Jenkin, Professor Fleeming, on the elliptical arches in the Bridge of Avignon, American timber ; on 81 ; on Trajan's bridge over the Danube, 130 bridges, 143; on the defects of metal suspension bridges, 144 fooinoie ; on Colechurch and B^ndzet, 217; on cofferdams, ze^j, footnote ; on the the covered bridge at insufficient width of New London Bridge, 257 ; on Craigellachie, Pavia, 308 ; on Telford's bridge at 349. Jhelum, River, in Kashmir, and its primitive bridges, 71, 72, 73. Jolly Miller's Bridge over the Dee, 305 footnote. Jones, Inigo, his bridge at Llanrwst, 282, avA footnote. " English Wayfaring Life in the Middle Ages," Jusserand, J. J., his book on 40. 49. SO. 98, 99. loo-

Kapellbrucke, Lucerne, 292. Karedj Bridge, Persia, 265-6. Kashmir Bridges, 71, 72, 73, 160, 161. Kershaw, S. Wayland, the late, on bridge chapels, 243 et seq. —

396 A BOOK OF BRIDGES

Kettlethorpe Park, 226. Khaju, the Pul-i-, at Isfahan, 213, 214, 215, 216. KiEN-NiNG-FU, in the province of Fo-Kien, China, its three handsome bridges mentioned by Marco Polo, 128. KiLBURNE, Richard, and his " Survey of Kent," 244. KiNGSLEY, Charles, his visit to the Pont du Card, 170-2. KiRCHER, Athanasius, German traveller and philosopher, b. 1602 d. 1680, his book on China, translated into French by Dalqui^, 314, 345, and footnote. KiRKBY Lonsdale Bridge, attributed to the Devil, 93. Knolles, Sir R., in 1387, helped to build Rochester Bridge, 244. Kreuznach, on the Nahe, Prussia, its old bridge with quaint houses, 208, and the illustration facing p. 208. Kurdistan, primitive bridges, 73, 74, 75, 76, 272.

Labelye's Westminster Bridge, see " Westminster Bridge." Lacer, Caius Julius, Roman architect, and builder of Trajan's Bridge over the Tagus at Alcdntara, 121, 184, 190, 344. He was buried on the left bank quite close to his bridge, 184, a romantic circumstance, like the burial of B^n^zet and Colechurch in their bridge chapels. Laellenkoenig, a grotesque head that used to decorate the tower on Bile Bridge, 306, 307. Lake Dwellings and Villages, the highest form of prehistoric bridge-building,

21 ; how evolved from Nature's object-lessons, 11 1 ; primitive shop-bridges

probably descended from them, as in Kashmir, 72, 73 ; the Glastonbury Lake Village, 136 et seq. LAMsisE, in Algeria, famous aqueduct, 176. origin, Lancashire Bridges, primitive, 55, 60, 61 ; Roman or of Roman 162-3,

263 ; mediaeval, 2ep footnote. Lancaster Bridge, built in the reign of King John, z-^o footnote. Landlords, Mediaeval, in their relation to the trinoda necessitas, 40 et seq.

Lankester, Sir Ray, on the approximate date of Palaeolithic art, 62 ; on the eagle-beaked flint tools unearthed from Pliocene deposits on the East Anglian Coast, 120 et seq.; on the approximate date of the Neolithic Period, 136.

Laroque, the Bridges of, near Cahors, 300 ; see also the colour plate facing page 300. "Late Celtic" Art was practised in the Glastonbury Lake Village as in the Hunsbury Camp, near Northampton, 137. Lava, from volcanoes, has made slab-bridges, 124. Lavaur, Pont de, famous French bridge of the eighteenth century, 310. Law, Mediaeval, and its attitude to roads and bridges, 40 et seq. :

INDEX AND GLOSSARY 397

Law, Modern, in Great Britain law prescribes minimum dimensions for the

over and under bridges of railways ; but it takes no notice at all of the military considerations which can never be wisely disconnected from the circulation of traffic along roads and over bridges. An over bridge

is one in which a road goes over a railway ; an under bridge is one in which a road goes under a railway. Both are exceedingly vulnerable, yet the law centres all its attention on details that concern their size, not on details that concern their protection from violence. Over Bridges. —Width

road, feet ; other public carriage turnpike 35 road, 25 feet ; private road, 12 feet. Span over two lines (narrow gauge), generally about 26 feet;

head room, 14 feet 6 inches above outer rail. Under Bridges. — Spans : turnpike road, 35 feet; other public road, 25 feet; private road, 12 feet.

Head room : turnpike road, 12 feet at springing of arch, and 16 feet throughout a breadth of 12 feet in the middle; for public road, 12 feet,

15 feet, and 10 feet in the same places ; private road, 14 feet for 9 feet in

the middle ; for exceptions the Acts must be. studied. " Law of Battle, the Universal, vii, 3, 4, 14-52. See Battle, Law of." Laws should get rid of stereotyped customs and conventions in order to enforce progress on dilatory mankind, 76, 77. Leeds Bridge had a chapel, 231. Legends on Devil's Bridges, 65-70. Libourne, Pont de, on the Dordogne, its cost, 356. in Life everywhere has fed on lives, 3, 4, 37, 38 ; how lives are sacrificed the enterprises of "peace," so-called, vii, 17, j^i^ footnote. Limousin, French Bridges of the, their cutwaters, 262, Lincoln, High Bridge at, an old housed bridge restored thirteen years ago, 221-2. Lincoln, New Port at, a Roman arch, 162. Lintel-stone Bridges of Lancashire, 60, 61, 62, 63, 64. Lion Gate at Mycenae, belonging to the Heroic Age, 157, 158. Lions, Decorative, at Mycenae, 158; on a Roman bridge, 177; on Chinese bridges, 127, 311, 313, 315. Lister, Lord, his genius came so very late in the history of man that it mocked all the dead generations of perhaps a million years, 31. Literary Projects, their division into two classes, v. " Liu Soh," a Chinese suspension bridge, 145. Llangollen Bridge, 2^ footnote, and yis, footnote. Llanrwst, Inigo Jones's Bridge at, 282, a.nd footnote. Lockyer, Sir Norman, on the date of Stonehenge, 126. London Bridge, Old, robbed of her revenues by Henry III and his "dear 216-21 often ravaged by fire, 218-19; size of wife," 49-51 ; her history, ; water the arches and piers, 220-1 ; she was an arcaded dam to deepen the for shipping on the eastern side, 220; her chapel, 216-17; diverting the course of the Thames while she was being built, 253-4 ; her drawbridge,

260-1 ; her gradual destruction, 219-20. 398 A BOOK OF BRIDGES

London Bridge, New, begun on March isth, 1824, 219-20; her scale is too old river, small to be in accord with a tremendous city and a vast 256-7 ; wasted in hammer-dressing the span of her finest arch, 309 ; much money cost, the masonry, 325-6 ; her length and her total 357. " LoNDiNOPOLis," Howell's, 216. London's Attitude to Bridges, past and present, 49-51, 256, 325, 326, 327. LosTWiTHiEL Bridge, jpi, footnote. LovANG Bridge, China, 126-7. LuDGATE Hill, London, its detestable railway bridge, 326. Ludlow Bridge had a chapel, 231. LuYNES, Remains of a Roman Aqueduct at, 176. Lydstep Arch on the coast of Pembroke, a Nature-made archway that resembles a bridge, \tp footnote. in an attempt was made Lyon, Roman Aqueduct at, 176, 213 ; at Lyon, 1755, to build an iron bridge, but it failed, 348.

Machicolations, openings between the corbels that support a projecting parapet, or in the floor of a gallery or the roof of a portal, for shooting or dropping missiles and boiling liquids upon assailants attacking the base of the walls. They were used in the defence of old bastille bridges, and silly modern engineers have copied them as dummy ornaments with which to decorate trumpery defenceless gateways and towers, 275, 323. Machine-Worship, or the worship of machines, 78, 79, 341. Magalhanes, p., on the Chinese bridge of Pulisangan, 311 footnote. Marcian Aqueduct, 189, ^.nA. footnote. Marco Polo, on Chinese bridges in the thirteenth century, 128, 210, 310, 313. Marnun, Pul-i, at Isfahan, 212. Martineau, James, on the law of battle, 36. Martorell Bridge in Spain, 2^] footnote. Masons' Marks, Roman, 171. Mathematicians, how they interfered in bridge-building of the i8th century, 337- Mathilda, Queen, twelfth century, builds and endows Bow Bridge, 98. Meaux, the Miller's Bridge at, 209, 223. Medieval Church, she protected bridges, 40, 51, 96, 207; see also "Bridge Chapels." Men of Trade in their relation to bridges, 77, 78 et seq., 326 et seq., 349 et seq., 357-8- Men, Ordinary, are the mimics and mechanics of genius, 58. Menai Bridge, 344. Menard, M., historian of Ntmes, 174. INDEX AND GLOSSARY 399

Menkaura, Pyramid of, at Gizeh, has appointed arch, 156. Mkrida, in Spain, her Roman aqueducts and bridges, i8i, 182, 200, 285 footnote. Meroe, in a Pyramid at, there is a semicircular arch composed of voussoirs, 160.

Metal Bridges, Chinese, 344-5 ; European, 144 footnote, 348 et seq. ; American, 352 et seq. Methods, New, in Military War, their effects on bridge-building-, vii, viii, 15, 358, 359- Michelangelo, wrongly reputed to be the author of the Rialto, 211.

Middle Ages, 26, 49, 50, 83; see also "Bridge Chapels," "War-Bridges," " Mediaeval Church," and the Gothic bridges drawn by Frank Brangwyn. Military Bridges, see " War-Bridges."

Military Forethought, the need of it in bridges, vii, viii, 15, 238-9, 244, 259, 260, 261, 272, 328, 331, 334, 337, 350, 352, 355-9. Mill, John Stuart, on the law of battle in Nature, 37. MiLLAU, 209, and illustration facing page 352.

Mill Bridges, 209, 223, 224 ; see also the picture of Millau Bridge facing page 352. MiLvius, Pons, ancient name of the Ponte Molle, 197. Mimicry, or imitation, frees the large human mind from the labour pains of thinking, 105. Mimics, Nature's School for, see Chapter II.

Miocene Age and Nature-made bridges, 1 13-14. Modern Bridges, see the last chapter; also "Metal Bridges," "London Bridge, New," "Railway Bridges," etc.

Modern Spirit, its intemperate vulgarity, 13, 48, 270. Molle, Ponte, modern name for the Pons Milvius, 197. Money bequeathed to bridges, 227, 233. Monks of Strata Florida built the Devil's Bridge at Aberystwyth, 67. Monmouth, Monnow Bridge at, a fortified work, 93, 280, 281. MoNNOW Bridge at Monmouth, 93, 280, 281. MONTAUBAN, THE PONT DES CONSULS AT, 27, 254-7. MONZIE, near Crieff, in Perthshire, a bridge there similar to Harold's Bridge at Waltham Abbey, 163. Moore, Sir John, his relation to Spanish bridges, 2g footnote, 334-5. Moors in Spain, their influence on architecture, 28, 29. More, Sir Thomas, his decapitated head was displayed on Old London Bridge, 261. Morston, Hamo de, in the story of Old Shoreham Bridge, 43 et seq. Moselle Bridge at Coblentz, 260. 400 A BOOK OF BRIDGES

earliest in the evolution of Mother-Ideas in human history, 56, 57, 58 ; the

; see also " Genius." bridges, 56, 57 ; they are phases of strife, 59, 60 Mud, its use in humble architecture probably borrowed from birds, iii, and footnote. MuNRO, Robert, m.a., m.d., etc., his valuable book on "Archaeology and False Antiquities," 21. MuRCHisoN, Sir Roderick, famous geologist, his remarks on rock-basins, 152 footnote. Mute Historians, silent works of art, such as great bridges and churches, 25. Mycenae, some of her ancient relics considered in their relation to the history of vaults and arches, 157 et seq.

Nantes, her mediasval bridge, now gone, 224-5. Napoleon, Pont, near Saint-Sauveur, 278, 280. Narni, a broken war-bridge of the thirteenth century, 277-8. Narni Bridge, remains of a Roman masterpiece, 23, 24, 25. Narrow Arches in the first Roman aqueducts and bridges, igi-2. Narses, general and statesman, in the reign of Justinian, rebuilt the Pons Salarus, 191. National Defence, in its relation to bridges, vii, viii, 15, 238-g, 244, 259, 260, 261, 272, 328, 331, 334, 337, 350, 352, 355-9. Natural Arches, 6, 2.116. footnote, 150-6.

Natural Bridges, 3, 4, 6, and footnote ; see also Chapter II. Nature, her social rule in her cellular commonwealths is far superior to the social rule in human societies, 19.

Nature, her School for Mimics, see Chapter II.

Nature-made Bridges, 3, 4, 6, a.nd footnote ; see also Chapter II. " Nature's Strife, 3, 4, 37 ; see also Strife and Historic Bridges," 14-52. Navilly, Pont de, by Gauthey, its imperfect decoration, 322. Neronianus, Pons, 197. Nero's Aqueduct, 189. Nests, Birds', their influence on handicraft, iii, 112. Neuilly-sur-Seine, Pont de, by Perronet, 338. Neville, Count, in 1440, bequeathed twenty pounds to "Ulshawe Bridge," la. New Bridge on Thames, near Kingston, its Early English arches, 96. Newcastle Bridge possessed a chapel, 231. Newcastle High Level Bridge, 79-80.

Newman, Cardinal, on the terrible strife in human history, 38, 39. New Manhattan Bridge at New York, 354. New Port at Lincoln, a Roman arch, 162. Ney, Marshal, his celebrated criticism of the aqueduct of Segovia, 184. "

INDEX AND GLOSSARY 401

Noblemen, Rival, in the Middle Ages, often opposed the building of bridges, 250-1.

NoMENTANO, PoNTE, 298-9 ; also the picture facing page 296. None-such House on Old London Bridge, 216. Norfolk Bridges, 135. Norfolk Shrines in the Middle Ages, 236. Norman Bridges, 96, 97, 98. Notre-Dame, Pont, Paris, 225.

Obelisks on the Hoogesluis at Amsterdam, 323. Ogivale Arches, see "Pointed Arches." Old London Bridge, see " London Bridge, Old."

Orense, in Galiicia, her famous gabled bridge, 28, 29, a.a6. footnote. Orleans, d', Pont in the fifteenth century, 239 ; her Belle Croix, 246-7. Ornament on Bridges, see " Bridge Decoration " or " Decoration of Bridges." Orthez, Vieux Pont, mediaeval war-bridge, 278-9. There are two conflicting accounts of the part played by this bridge in the battle of Orthez, February 27th, 1814. One of them says that the bridge was neutralised

by agreement in order to spare it from destruction ; the other account declares that the solidity of the stonework baffled the French attempts to break it down. Anyhow, the bridge was not used in the action. Hill

crossed well above it, and Picton and Beresford below. Napier says : " Hill, who had remained with 12,000 combatants, cavalry and infantry, before the bridge of Orthez, received orders, when Wellington changed his plan of attack, to force the passage of the Gave, partly in the view of preventing Harispe from falling upon the flank of the sixth division, partly

in the hope of a successful issue to the attempt : and so it happened. Hill, though unable to force the bridge, forded the river above at Souars, and driving back the troops posted there, seized the heights above, cut off the French from the road to Pau, and turned the town of Orthez. OusE Bridge at York, 241-3, &r\6. footnote. Outlaws, Medieval, in their relation to fords and bridges, 207, 208.

Pacifists, their false and weakening ideas considered in relation to the varied strife circulated by roads and bridges, vii, 3, 4, 14-52, 360-1. Paget and the ioth Hussars, how they protected Moore's retreat at the bridges of Castro Gonzalo and Constantino, 335. Paleolithic Age, 62, no, 131. Paleolithic Art, and its approximate date, 131. Palladian Bridge in Prior Park, 343. Palladio, Andrea, Italian architect, i. 1518—

Pandy Old Bridge at Bettws-y-Coed, 163.

Paradiso, Matheo, a military architect, in 12 17, built a gate-tower to defend the Alcdntara at Toledo, 287.

Parapets, low walls or railings serving to protect the edge of a bridge ; they

rest on the outer spandrils ; sometimes they project beyond and need brackets or corbels, like the Pont Neuf at Paris, 321-2, and plate facing page 320. Often in the Middle Ages some parts of the parapets were crenellated, as they are above the angular piers of the Valentr6 at Cahors, see

the colour plate facing page 264 ; even some modern defenceless bridges have battlemented parapets, for the imitative silliness of industrial engineers delights in foolish make-believe. Parapets cannot be studied with too much care, so there are frequent references to them throughout this monograph.

Some Roman bridges were built without parapets ; there is an example

near Colne, 162, 164 ; and many of the gabled bridges in Spain repeat in a giddy manner this dangerous defect, 27. Paris and her Bridges, 225, 321-2. Here is a fine subject for a book. There is a good reference to the Paris bridges of the year 1517-18 in the " Revue des Deux Mondes," xlvii., Sep., 1908, p. 467. Five bridges existed then,

three stone structures, and two of wood ; and all of them had houses from one end to the other. Tolls were charged and they belonged to the King. Several illustrations of Paris bridges will be found in Lacroix, "Manners, Customs and Dress during the Middle Ages." On page 321 there is one of the year 1500 ; see also in the same book pp. 302, 316, and 471. Parliament of Taste, a, necessary in all large towns for the discussion of art in all matters that concern the public intimately, 324-5.

Parthenay Bridge, a Bastille bridge of the Middle Ages, 34, 35, 281, and the plate facing page 36. Paul's Bridge, St., 327. Pavia, her famous covered bridge of the 14th century, 308-9. Pavilions in the Pul-i-Khaju at Isfahan, 214, 215, and the line block on page 213. Peace, considered in her relation to the varied strife circulated by roads and bridges. She is an illusion of the mind and belongs to a routine of idle sentiment, vii, because every phase of human enterprise claims a battle-toll of killed and wounded and vii, maimed, 3, 4, 33-6 ; see also section ii. Chapter I, 14-52, and 333, 351, 360-1. Peace Fanatics, their dangerous influence on foreign politics, 2,Z footnote, 351, 360-1. Peninsular War, the Roman bridge at Alcintara, 16, 186 ; the Roman bridge at Constantino, 335 ; Orense Bridge, zg footnote. Perforated Towers on bridges ; modern engineers have passed suspension cables through towers instead of passing them over the summits, 346, 354. Perronet, Jean Rodolphe, 1708-94, French engineer-architect, 282-3, 337-8, 2i\so footnote 338. "

INDEX AND GLOSSARY 403

Pershore Bridge, 355. Persian Bridges, 202-4, 211, 212-16, 265-70. Peruvian Bridges, 146 et seq. Phallus, a symbol of prosperity, carved twice in low-relief on the Pont du Gard, 174. Piers of Bridges, 114, 200, 264, 316, 338, 341, 342, 353, 354. There are other references also, but the reader will be able to follow the history of piers from the natural bridge of stepping-stones through the many changes and defects mentioned in the text. To-day, with the rapid improvements in airships and aeroplanes, new armoured piers will have to be designed, strong enough to bear the great weight of a roofed superstructure of armour-plate steel, yet not thick enough to obstruct rivers. Now that bridges are as vulnerable as Zeppelin sheds, engineers have an excellent chance to serve their countries well by inventing new and powerful bridges. How to protect piers—at least as much as possible —from direct artillery

fire is one very difficult problem ; how to protect them from falling shells and bombs is another. When London is fitted adequately with new defensive bridges her river will be as impressive as a fleet of super-Dreadnoughts. See also " Abutment Piers."

Piers, Criss-cross, Gaulish, 70 ; in Kashmir, 71-3 ; in North Russia, 73. Piers, Founding, 99, 197, 251-2, 341-2. Pigs, in China, sacrificed to rivers when bridges are in danger from floods, 69 footnote, 248. PiNGERON, M., his remarks on Loyang Bridge, 127. Piranesi, Giambattista, 1720-78, 193, 197. Pisa, her chapelled bridge, 209. The late Mr. S. Wayland Kershaw wrote as

follows in 1882 : "The most remarkable bridge chapel abroad is the one dedicated to Santa Maria del' Epina on the side of the bridge over the Arno at Pisa, erected about 1230. Built of the rich stone and marble of the district, it is ornamented with niches and figures, and, though renovated and repaired, still presents a graceful appearance.

Pointed Arches and Vaults, in Nature, 6 footnote ; in Egypt of the Fourth in ; at Arpino, in early Dynasty, 155-6 ; Babylonian work, 2^^ footnote 156 ; French bridges, 6 footnote, 86-93. PoiTOU, in its relation to ribbed arches in bridges, 95. Polo, Marco, 128, 210, 310, 313. Pons JEuxss, 194-5. Pons .^Emilius, iq;^ footnote. Pons Aurelius, 197. Pons Cestius, 196-7. Pons Fabricius, 195-6. Pons Gratianus, 196. Pons Lapideus, 140. 404 A BOOK OF BRIDGES

Pons Milvius, 197. Pons Neronianus, 197. Pons Palatinus or Senatorius, 192-3. Pons Salarus, 191. Pons Selmis, 178. Pons Sublicius, 41, 64, 136, 140. Pons Triumphalis, 197. Pons Vaticanus, 197. Pont au Change, a Paris bridge, 224. Pont aux Meuniers, a Paris bridge, 224. Pont d'Arc, a Nature-made bridge, 6. Pont d'Ambroise, a Roman bridge, 82. Pont de Broel, a Flemish war-bridge, 290. Pont d'Espagne, a modern French bridge, 278. Pont des Consuls, a mediaeval bridge at Montauban, 27, 254-6. Pont de Vernav at Airvault, see the plate facing page 96. Pont du Gard, Roman bridge-aqueduct, 83, 167-75. Pont Flavien at Saint-Chamas, Roman bridge, 176-7. Pont Napol£on, a great modern bridge, 278. Pont Neuf, Paris, 321-2, and the illustration. Pont Notre Dame, Paris, 225. Pont St. BfiNfizET at Avignon, frontispiece, 81-4, 217, 236-9, 262, 297. Pont St. Cloud, 296. Pont St. Esprit, 92, 126, 296 et seq. Pont St. Michel at Paris, 225. Pont Valentr£ at Cahors, 263-4, 282-5. Pont-y-Mynach, the Devil's Bridge near Aberystwyth, 67 et seq. Pont-y-Pant, 131. Pont-y-Prydd, 2^ footnote. Ponte Augustus at Rimini, 199. Ponte Cartaro at Ascoli-Piceno, 201. Ponte Cecco at Ascoli-Piceno, 201. Ponte della TrinitA at Florence, 222, 316. Ponte di Porta Cappucina at Ascoli-Piceno, 201. Ponte Maggiore at Ascoli-Piceno, 200. Ponte Molle, 197. Ponte Nomentano, 298-9 ; also the picture facing page 296. Ponte Quattro Capi, 196. Ponte Rotto, 23, 192. INDEX AND GLOSSARY 405

PONTE S. BarTOLOMMEO, 1 96. PONTE SaLARO, 191. PoNTE Sant' Angelo, 194-5, 3^^- PoNTE SiSTO, 197, 265. PONTE VeCCHIO, 210, 222. PoNTiSM, the historical study of bridges. PoNTisT, a devotee of bridges and their history. PONTIST Brothers or Friars, or Fr&res Pontifes, 83, 90, 91, 92, 296, 297, 342. St. B^n^zet was one of the leaders in this religious brotherhood of good craftsmen. Porta dell' Arco at Arpino, celebrated in the history of pointed arches, 156-7- Portage Bridge, Great, on the Genesee River, 353-4-

Porter, Simon, bailiff at Old Shoreham in the year 1318 ; his official defence of the neglected timber bridge, 41-2.

PosTBRiDGE, Dartmoor, its famous clapper bridge, 104. Pratt, Godfrey, nefarious guardian of Old Bow Bridge, 98-9.

Prehistoric Bridges, and their descent from Nature's models, see Chapters I and II.

Preston Bridge, 2efl footnote. Prior Park, Palladian Bridge, 343. Progress in Human Societies, its terrible slowness, 39, and section iii, Chapter I, "Custom and Convention," 53-84; see also no, 333. Puente de San Martin at Toledo, 287-8. Puente la Reina, 2^ footnote. Puente Nuevo at Ronda, 280, &ad footnote. Puente Trajan over the Tagus at Alcdntara, 6, 153, 183, 186, 212, 321. Pul-i-Kaisar at Shushter in Persia, 202-4. Pul-i-Karedj in Persia, 265-6. Pul-i-Khaju at Isfahan, 212-16. Pul-i-Marnun at Isfahan, 212; see also "Persian Bridges" and " Ali Verdi Khan." Pulisangan, China, 310-12. Pulteney, William, his bridge at Bath, 221. Puritans, their enmity to chapelled bridges and to wayside shrines, 230, 233 et seq. Pyrenees, French, great bridges there, 278-80.

Quakers, their attitude to the strife that bridges and roads circulate, 35-6. Qualities of a Great Bridge, 320. Quicksands of Cheapness, 48. ;

4o6 A BOOK OF BRIDGES

Rabot, the, at Ghent, a fortified bridge and lock,. 289, 291. conventional argfuments which Railway Bridges, often detestable, 5, 77, 78 ; Level Bridge at Newcastle, have governed their structure, 77 ; the High Bridge, its disaster, ; the Forth 350 79-81 ; the Tay Bridge and 339-42 the Great the Illinois and St. Louis Bridge over the Mississippi, 352-3 ; Portage Bridge over the Genesee River, 353-4- Many railway bridges over strategical rivers can be displaced by tunnels, but many others must be armoured with cone-shaped roofs as a protection against overhead wars from airships and aeroplanes, 358. See Albi Railway Bridge, the plate facing page 8, and Cannon Street Railway Bridge, the plate facing page 48. horizontal Rameses II, Temple of, at Abydos, has a primitive vault built with courses of stone, showing its descent from the rock archways made by Nature, 155. Refinement, a quality often overdone in British art, 168. Reichenau, John Grubenmann's Bridge at, 142. Relief Bays for Flood Water, they were introduced by the Romans, 284, Pont des Consuls at and were copied by mediaeval bridgemen ; witness the Montauban, 255, 256, and the Pont St. Esprit, 293, 297. Pontists should note both the difference of shape in flood-water bays and the variation of their position in the architecture. At M^rida, for example, in the great squat Roman bridge, they are long and round-headed, and rise from the low and bold cutwaters, which are overgrown with grey-green mosses and grass. On the other hand, a Moorish bridge of four arches near Tangier has much smaller relief bays with round heads, and they are pierced high up through the spandrils. They look like three little windows that give light and air to a work of sun-bleached antiquity. Moreover, their shape is repeated in about a dozen little holes cut through the base of the parapet, perhaps to help in the drainage of the roadway, perhaps to be useful in military defence. This Moorish bridge has semicircular arches, and the road is inclined over each abutment, just like the Roman bridge at Rimini. But the technical sentiment is less virile than the Roman. Religious Emblems or Symbols on Historic Bridges, such as the Phallus on

the Pont du Gard, 174 ; the Janus heads on the Pons Fabricius, 196 ; the cross and idol or image on the Chinese bridge at Shih-Chuan, 247 ; and the crucifix on Gothic bridges of the Middle Ages, 96, 230, 246. The symbolic lion and tortoise on the Chinese bridge of Pulisangan were borrowed from the singa and Kiirma of Hindu mythology, 311 footnote. I should like the cross to be raised again on all bridges in unfortified towns, as a protest against a Teutonic misuse of flying warfare.

Renaissance, the, and its Genius, in the war-bridge at Wiirzburg, Bavaria, 259; in Venetian bridges, 211-12, 307, 315-16; in the bastille bridge at Chdtellerault, 331-4; in the gradual decline of bridges from military fore-

thought into a complete disregard for national defence, 336-44 ; in wasteful artistry such as redundant ornament and too elaborate parapets, 320, 321, 322, 324, 325, 326. — ";

INDEX AND GLOSSARY 407

Rennie, George, his design for London New Bridge has defects of scale, 256, 257. Rennie, John, b. 1761 d. 1821, his poor bridge over the Thames at Southwark was financed by a Company, not by the City, as if London were a trivial village with some new industries that needed encouragement, 326-7. Rennie, Sir John, son of John Rennie and brother of George Rennie, was the acting engineer during the building of New London Bridge, according to Professor Fleeming Jenkin. Research, its illimitable scope in the study of bridges, 3-13. Rh6ne, the River, his two famous old bridges, the Pont St. Bdn^zet and the Pont St. Esprit, both constructed by the Frkres Pontifes, or Pontist Brothers. See Brangwyn's pictures and the text. Rialto, Venice, 209, 211-12. Ribbed Arches, like those in the Monnow Bridge at Monmouth, 281, and the Pont de Vernay at Airvault, Deux-S^vres, plate facing page 96. The introduction of ribbed vaulting into English churches and bridges, 93-100. Professor Moseley's remarks on groined or ribbed arches may be quoted here from Hann and Hosking's profuse volumes. "The groin ... is nothing more than an arch whose voussoirs vary as well in breadth as in depth. The centres of gravity of the different elementary voussoirs of this mass lie all in its plane of symmetry. Its line of resistance is therefore

in that plane. . . . Four groins commonly spring from one abutment each opposite pair being addossed, and each adjacent pair uniting their margins. Thus they lend one another mutual support, partake in the properties of a dome, and form a continued covering. The groined arch

is of all arches the most stable ; and could materials be found of sufficient strength to form its abutments and the parts about its springing, I am inclined to think that it might be built safely of any required degree of flat- ness, and that spaces of enormous dimensions might readily be covered by it." Yet " modern builders, whilst they have erected the common arch on a scale of magnitude nearly approaching perhaps the limits to which it can be safely carried, have been remarkably timid in the use of the groin. Progress may be compared to a dilatory army that ever fails to march forward with all its needed units. Richmond Bridge, Yorkshire, had a chapel, 231. Rimini, her Roman bridges, 82, 199, 200, 220.

Ring of an Arch, the compressed arc of voussoirs, 264 ; the lower surface of a ring is called the soffit of an arch. In some bridges the voussoirs form a double or a triple ring, 305, and footnote. Two very fine bridges of this sort, in my collection of photographs, are the Pont de Vernay at Airvault, 1 2th century, and the Pont Saint-G^n^roux over the Thouet, also in Deux- Sivres, 13th and 14th centuries. Another monument to be studied is the reputed Roman bridge at Viviers over the Rhone, built mainly with small materials. Whether Roman or Romanesque, the structure of the arches has great interest, and a large photograph is sold by Neurdein, 52 Avenue de Breteuil, Paris. "

4o8 A BOOK OF BRIDGES

i8i. Rivers, how their violence has given lessons to bridge-builders, and bridges Roads, ancient British, 22; Roman, 139, And footnote ; they

mankind, 14-52 ; circulate all the strife in the overland enterprise of 4, as types of society are as old as their systems of circulation, just women mediasval roads in England, 51, 52. and men are as old as their arteries, 13 ; the con- Many of them were a survival of the Roman empire, m which genuinely struction of highways was a military and political necessity. The medieval roads connected new towns with the main or ancient thorough- principal colonies, fares, which had traversed Roman Britain from her London and York, to the other settlements. "The roads of England," says Thorold Rogers, "are roughly exhibited in a fourteenth century map with many of the still preserved in the Bodleian Library, and are identical highways which we know familiarly. In time these highways fell out of Acts, repair, and were put in the eighteenth century under the Turnpjke when they were repaired. But comparatively little of the mileage of generally English roads is modern. What has been constructed has been some shorter and easier routes, for in the days of the stage-coaches it was highly expedient to equalize the stages.

RoANNE, Pont de, its length and its cost, 356. Robin Hood Ballads, their rustic charm is repeated in some old English bridges, 9, 44. Roche Percee, La, at Biarritz, natural arched opening, 151. Roche Trouee, La, near Saint-Gilles Croix-de-Vie, 151. Rochester Bridge and her Chapel, 243-6. Rock-Basins, their formation by the erosive power of glaciers, 152, and footnote. Rock-Bridges, or bridges made by Nature, 6, 2sAfootiiote, 150-3.

Rogers, Thorold, Professor, on medisevalism and industrialism, 47 ; on " mediaeval roads, 52 ; see also Roads." Roman Gateways to defend bridges, 176-7, 272. Roman Genius, 23-5, 26-7, 30, and Chapter III. Roman Castles or Towers to defend bridges, at M6rida, 182, at Alcantarilla, 367-8. Rome, Ancient, her bridges, 193 et seq. RoNDA AND her BRIDGES, 183, 280, and footnote. Rondelet's " Essai Historique sur le Pont de Rialto," 212. Roofed Bridges, the Pons ^lius is said to have had a bronze cover upheld by forty-two pillars, 195; Chinese examples, at Ching-tu-fu, 2\\ footnote, in

Western China, 291 ; Grubenmann's timber bridge at Schaflfhausen, 141 ;

Italian, at Pavia, 308, at Venice, 211 ; Sumatra, 291 ; Swiss, 291-2 ; steel-clad roofs to protect bridges from airships and aeroplanes, 358, 359.

its first Rope, model was the twisted stem of a vine-like creeping plant, 145 ; bamboo ropes, 145, 348, 2mA footnote; ropes of Peruvian grass, 146-7. "

INDEX AND GLOSSARY 409

Ross-on-Wye, Wilton Bridge, an Elizabethan structure with ribbed arches and angular recesses for pedestrians, 94, 182, 2x16. footnote. Recently, I regret to say, this beautiful old bridge has been attacked by the highwaymen " called road officials ; and now she is horribly scarred all over with pointing, just like the mishandled Roman bridge at Alcdntara. A new bridge of ferro-concrete, suitable for motor lorries and the like, would have cost the county less than this uneducated trifling with a genuine masterpiece.

Rostro-Carinate, flint tools shaped like an eagle's beak, 120. ROTHERHAM BRIDGE AND HER ChAPEL, 93, 209, 219, 232-3. RoTHENBURG on the Tauber, her two-storeyed bridge, 271. RoTTO, PoNTE, at Rome, 23, 192, 193.

Rousseau, Jean Jacques, French philosopher and writer, born in Geneva, 171 2,

d. 1778 ; his visit to the Pont du Gard, 168. Rules of War in the Middle Ages, curious French examples, 237, 241-2. Runcorn Bridge, dating from 1868, 275.

Saint Angelo's Bridge at Rome, 194-5, 324. Saint Bbn^zet's Bridge at Avignon, frontispiece, 81, 82, 83, 217, 236-8, 262, 2^0 footnote. Saint-Chamas and the Pont Flavien, 176-7. Saint-Cloud, Pont, 296. Saint-Esprit, Pont, 92, 293-8. St. Ives in Huntingdonshire, her chapelled bridge, 232. St. Martin's Bridge at Toledo, 285, 287-8. St. Michel, Pont, Paris, 225. St. Neot's Bridge, jpK, footnote. Saint-Nicolas, Pont, on the road to Nimes, 295. Saint-Thib^ry, a Roman bridge near, 178. Saintes, Bridge at, in France, and its tremendous fortifications, 300-1. Salamanca, Roman bridge at, 182, i&t^ footnote. Salaro, Ponte, 191. Salford Bridge, its date, 2^0 footnote. " Sans-Pareil, Le," BefFara's bridge near Ardres, 305-6. Sargisson, C. S., pontist, vi, 61 footnote, 163. Savoy, hills of, survival there of Gaulish timber bridges, 70-1.

Scale in the Proportion of Bridges, 256 ; defective in many English bridges, 256-7. Scatcherd, N., his writing on Wakefield Bridge Chapel, 22S footnote, 230. Schaffhausen, Ulric Grubenmann's bridge at, 141-2. ScHLOSS BrOcke at Berlin, a feeble copy of the Ponte Sant' Angelo in Rome, 324- —

4IO A BOOK OF BRIDGES

Scientific Bridges, Modern, 337-42, 349-53-

Scotch Bridges, 44. Scotch, their neglect of ribbed arches, 94. its technique, Segovia, the Roman Aqueduct, visited by Marshal Ney, 183-4 ; 189. Semiramis, her reputed bridge over the Euphrates at Babylon, 273-4. Sentimentalists, British, 33 etseq., 294, 360-1. Sewers, Roman, 161. Sex in Bridges, 194, 284-5, 293~4- Sextus IV and the Ponte Sisto, 197, 265. Shakespeare, his debt to the Mediaeval Church, 233.

Shapur I of Persia, 202. Shih-Chuan, in Western China, its important bridge, 247. Shoreham Bridge, Old, in Sussex, 41-3. Shrewsbury, Welsh Bridge at, used to be a fortified work, 261. Shrines, Wayside, 207, 230, 236, 246-7. over the Shrined Bridge at Elche in Spain, picture facing page 236 ; at Trier Moselle, 247. Shushter, in Persia, the Pul-i-Kaisar, 202-4. Sichuan, China, bridges in this province, 126, 145, 210 footnote, 248, 315, 347- Sighs, Bridge of, 307. SiN-DiN-FU, now called Ching-tu-fu, this city's bridges as seen by Marco Polo, 210 footnote. Sisto, Ponte, 197, 265. Slab-Bridges with Stone Piers, 125-8; see also 61-3, 100-5.

Sleep is united by bad dreams to the law of battle, vii.

Smeaton, John, English civil engineer, b. 1724 d. 1792, his big "scientific" bridge over the Tyne at Hexham was a tragic failure, 339. Smiles, Samuel, Scottish author and pontist, 104.

Smith, Sir William, English classical scholar, the Pons Sublicius, 140 ; the Gard, Porta deir Arco at Arpino, 157 ; the stones employed in the Pont du 171 footnote; the masonry of the Pont du Gard, 175 footnote; Roman

aqueducts, iSq footnote ; the Pons Salarus, 191 ; Pons Cestius, 196; Pons Neronianus, 197. Smyrna, Roman Bridge and Aqueduct, 164. SoMMiERES, on the Vidourle, Roman bridge at, 179. SosPEL, Gateway Bridge at, 276. Southwark Bridge, London, its queer history, 326-7, 357. Spain and her Bridges, 13, 27-g, 104-5, i79~88, 238, 285-9. — ;

INDEX AND GLOSSARY 411

Spans, Wide, in Stone Bridges, the Puente de San Martin, Toledo, 140 feet, 288; at Trezzo, 251 feet, 309; Grosvenor Bridge, Chester, 200 feet, 309; Trajan's Bridge over the Tagus, 309 ; New London Bridge, and Waterloo Bridge, 309-10 ; Pont de Gignac and Pont de Lavaur, 160 feet each, 310 Bridge of Cho-Gan, China, 313-14. Speed-Worship, and its effects on the strife that bridges and roads circulate, 48. Spiders gave lessons to primitive men in the building of suspension bridges, 145- Spiers, R. Phene, architect and wrriter on architecture, 190, 199. Springers, the voussoirs at the springing of an arch. Springing of an Arch, the plane of demarcation betwreen the ring and the abutment is called the springing. In other words, the springing marks the place where a ring of voussoirs starts out on its upward curve from a pier or from an abutment. Srinagar, capital of Kashmir, her bridges with criss-cross piers of deodar logs or trunks, 71-2. Staircase Bridge in China, 248.

Tahmasp, Shah, of Persia, who reigned from 1523 to 1575, built the Pul-i- Marnun at Isfahan, 212. Talavera Bridge, Spain, 2^^ footnote. Tarabita, a Peruvian suspension bridge, 146. Tarragona, Roman Aqueduct at, 189. Tavignano, River, in Corsica, and its old military bridge shaped like a Z, 238.

Taxes to help the building and repair of bridges, in London, 50 ; at Montauban, 255- Telford, Thomas, Scottish engineer, b. 1757 d. 1834; his views on Gruben-

mann's bridge at Schaflfhausen, 141-2 ; on Inigo Jones's bridge at Llanrwst, 22)2 footnote ; his foolish bridge at Craigellachie, 349.

Tennyson, on Nature's strife, 37 ; his talk with a jerry-builder, 78. Tenorio, Pedro, Archbishop, renewed the bridges of Toledo, fourteenth century, 287, 288-g. Terrace-Walk on the Pul-i-Khaju at Isfahan, 215, and on the Ali Verdi Khan, 270. Terror inspired by the slowness of human progress, 55-6. Tertiary Times, their handicraft, 120-1. Tessanges, Jean de, Abbot of Cluny, who commissioned the building of the Pont St. Esprit, 297. Tewkesbury, King John's Bridge at, 2^ footnote. Thames Bridges, 96, 256; see also "London Bridge" and "Westminster Bridge." Thebes, the Temple of Ammon-Re, an early arch, 155. 412 A BOOK OF BRIDGES

Theory, defined, ii ; misuse of this great word, 12. Theory, the, of Pontine Defence, 14-17, and of the universality of strife, 17-52. Thirlmere, a primitive structure at, which is partly a dam, partly a bridge, 131- Thornton, Roger, of Newcastle, in 1429, bequeathed a hundred marks to the Tyne Bridge, 10. Thouars, in Deux-S^vres, Gothic bridge at, 275. Thrift in Bridge-building, 264-5, 325-6. Tiber, the, and the sacrifice of human beings, 64. Tiberius, he finished the beautiful Roman bridge at Rimini, which Augustus had begun, 201. TiciNO, the River, and the covered bridge at Pavia, 308.

Tiles, they have been used in some Chinese bridges, 211 footnote ; Persian

bricks resemble Roman tiles, 267 ; the spandrils of the Pul-i-Khaju at Isfahan are mostly filled in with modern tiles, 215.

Timber Bridges, the earliest, 3, 58, 114, 115, 116, 118, 119, 122, 123; tree- bridges with stone piers, 129-32 ; tree-bridges with timber piles, 133-5 >

some typical timber bridges, 136-43 ; in the United States of America, " 142-3, 353 ; see also Criss-cross Piers." Tiryns, early vaults at, 157. Todentanzbrucke at Lucerne, 292. Toledo and her Bridges, 285-9.

Tordesillas Bridge, Spain, 2^:^ footnote. Tortoise, Symbolic, used in the decoration of some Chinese bridges, 311. Tournai, Pont des Trous at, 290. Tours, Pont de, on the Loire, her cost length, and her 357 ; see the picture facing p. 344.

Tower Bridge, London, 78, 327 ; see the two illustrations facing pages 80 and 328. Trajan's Bridge over the Danube, 129-30. Trajan's Bridge over the Tagus, 183-7, 309- Treasury of Atreus at Mycenae, 158-9.

Tree-Bridges, 3, 4, 58, 114, 115-19, 122, 123; tree-bridges with stone piers,

129-32 ; tree-bridges with timber piles, 133-5. Trezzo Bridge, destroyed by Carmagnola, 309-10. Triangular Arches, 157, 160-1. Triangular " " Bridge at Crowland, see Crowland ; in Spain, 181. Trier Bridge over the Moselle, with her shrines, 247. TrinitA. at Florence, 316-17. Trinoda Necessitas, and its relation to bridges and roads, 40 et seq. — —

INDEX AND GLOSSARY 413

Triumphal Arches, Roman, on the Pont Flavien at Saint-Chamas, 176 ; on the bridge at Saintes, 301, and footnote; on a Chinese bridge described by Gauthey, 315. Triumphalis, Pons, 197. Truth differs from fact, 11.

Truths, Technical, in Bridge-building, 13. TuDELA Bridge, Spain, zS^ footnote.

Tunnels bored under water by ants, 122 ; tunnels to displace many of those strategical bridges which airships and aeroplanes could wreck with bombs, 59, 358.

Turner, J. M. W., his "Walton Bridges," 6. Turnpike Act of 1773, 59. Turkish Bridge at Zakho, 65-6. TwiZEL Bridge and Flodden Field, 94.

Ulloa, Antonio de, Spanish Admiral and traveller, b. 1716 d. 1795, his book

on South America ; primitive timber bridges, 135 ; the tarabita, a Peruvian

suspension bridge, 146 ; the fifth Ynca's bridge of rushes, 146-7 ; bujuco bridges, 147-8. United States of America, 142-3, 352-4. Uzes, on the road to Nimes, the Pont Saint-Nicolas, XIII century, 295-6.

Vaison, in Vaucluse, an important Roman bridge at, 176. Valentre, Pont, at Cahors, famous war-bridge, 27, 263-4, 282-5, ^^^ tw illustrations. Vaticanus, Pons, 197. Vauxhall Bridge, London, date and cost, 357. Vecchio, Ponte, Florence, 210, 222.

Venice, the Rialto, 209, 211-12, and the picture facing page 212 ; Ponte della

Paglia, the picture facing page 152 ; a canal bridge, 329. Verona. The fine Veronese bridges are not mentioned in this monograph ;

they passed from the text in a revision ; but pontists know them well, and set great store by the charming Ponte di Pietra, and by the old sloping bridge with forked battlements that swaggers picturesquely across the Adige from the Castel Vecchio. The Ponte di Pietra rises from ancient

foundations and she still retains two Roman arches, certainly often restored ; the other spans are gracefully architectural. A circular bay for the relief of floods tunnels the spandrils above the cutwater of the middle pier. Vicenza, two bridges of Roman origin, 199. ViOLLET-LE-Duc, EuGifeNE EMMANUEL, French architect and historian of architec-

ture, b. 1814 d. 1879. Gaulish bridges, 70, 71 ; arcs doubleaux, or ribbed at mill arches, 94, 95 ; the millers' bridge Meaux, 223 ; some other bridges,

224 ; on the shape of cutwaters, 262 ; on the martial bridge at Saintes, 300, 301. " "

414 A BOOK OF BRIDGES

ViscoNTi, Bernab6, founder of the bridge at Trezzo, 309. ViscoNTi, GiAN Galeazzo, founder of the covered bridge at Pavia, 308. ViTRUVius, 190. Volcanoes, their lava hardened- into a thicic crust over many gaps in the land; forming slab-bridges, 124.

VoussoiRS, or archstones ; they form the compressed arc called the ring.

Wakefield Bridge and her Chapel, 209, 226-30. Wales, her bridges, 45, 46; see also "Brecon," " Llangollen," " Pont-y-Pant, and " Pont-y-Prydd. Walla Brook, Dartmoor, 60, 100. Wallingford Bridge had a Chapel, 231. Waltham Abbey and Harold's Bridge, 163. War, every sort of human enterprise must be a phase of war, for it claims

a battle-toll of killed and wounded and maimed ; strife everywhere is the

historian of life, vii ; examples of this truth chosen from the illusion named " Peace, 17, 33-6 ; see also Strife and Historic Bridges," 14-52. War, the Present Great, against Germany and Austria, vii, 33 footnote, 350, 358-61.

War-Bridges, vii ; a broken one of the XHI century at Narni in Italy, 14,

277-8 ; a fine one of the XIV century at Orthez in France, 18, 278-9 ; how war-bridges originated, 118-19; Roman examples at M^rida, 182, and

Alcantarilla, 367 ; the Pont des Consuls at Montauban, 254-6 ; Wiirz-

burg Bridge in Bavaria, 259 ; the drawbridge of Old London Bridge,

260-1 ; Warkworth Bridge, 261-2 ; Pont Valentre at Cahors, 263-4,

; in Bhutan, India, seq. 282-s 272 et ; at Sospel, 276 ; Monnow Bridge at

Monmouth, 281-2 ; the Alcdntara at Toledo, 285 et seq. ; Puente de San

Martin at Toledo, 5 defensive bridges in 287-9 Flemish towns, 289-91 ;

covered defensive bridges of timber, 291-3 ; Pont St. Esprit over the Rhone, 293-8 ; Ponte Nomentano in the Campagna, 298-300 ; at Laroque, near Cahors, 300 ; the bridge at Saintes in France, destroyed in 1843,

300-1 ; the evolution from fortified bridges into defenceless viaducts,

Chapter V ; new battle-bridges essential, 355-61. Warkworth Bridge, 93, 258, 261-2. Warrington Bridge, its date, lep footnote. Waterloo Bridge, London, 325-6.

Watermills on Bridges, 209, 223-4 ; see also the picture of Millau Bridge facing page 352. Wayside Shrines, 207, 230, 236, 246-7. Weavers' Bridge, Wycollar, Lancashire, 60-3. Wellington, Duke of, how he repaired the broken arch of the Puente Trajan over the Tagus, 186 16, ; at Toulouse, 280 ; on blowing up modern bridges, 359- INDEX AND GLOSSARY 415

" Welsh Bridges, 45, 46; see also "Brecon," "Llangollen," Pont-y-Pant," and "Pont-y-Prydd." West Rasen, Lincolnshire, a bridge with a double ring of voussoirs, 305. Westminster Bridge, London, 327, 357. Wheeled Traffic always postulates some good roads and bridges, 22. Wheels, their wonderful importance in mankind's history, 58, 154. Wigram, Edgar, artist and writer on Spain, vi, 27, 73 et seq., 104, 183, 185, 280, 285, 367. Wigram, the Rev. W. A., d.d., his notes on Kurdistan bridges, 74-6. Wilton Bridge, Ross-on-Wye, Elizabethan; see "Ross-on-Wye." William, Saint, and the Ouse Bridge at York, 241. Winchester, the Statute of, 207. Windmills and Bridges, 208, 219, 224-5. WiTTENGEN Bridge, 142. Worcester, Battle of, and Old Pershore Bridge, 355. WuRZBURG Bridge, 259. Wyatt, Sir Thomas, in the revolt of 1553, tried to cross the Thames, but was thwarted by the drawbridge on Old London Bridge, 261. Wvcollar Valley, Lancashire, its primitive bridges, 60 et seq.

Xerxes, his bridge over the Hellespont, see " Bridge of Boats."

York, Ouse Bridge at, 241 et seq. Y-shaped Branches in Primitive Bridges, 148.

Zakho, in Asiatic Turkey, the legend of its bridge, 65-6. Zamora, Spain, her fortified old bridge, 285. Zaragoza, her famous bridge, partly Roman, 187, 188. Zendeh Rud, Isfahan, 212-15, 268-70.

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